Document:

EXHIBIT 10.5

Acquisition Contract for the CARTIS Patent and CARTIS Trademark

This agreement is between

Herve Gallion,  representing himself, born on January 11, 1944 in Lyon (France),
of French  nationality,  residing  at Old Moke  Road,  Bell  Village,  Island of
Mauritius

                    Herein after named Herve Gallion

And

The  company  CARTIS  International,  Ltd.  with  it's  office  at the  Jamalacs
building, Vieux Conseil Avenue, Port-Louis, Island of Mauritius,  represented by
Mr. Cyril Heitzler

                    Herein after named Cartis International, Ltd.

It has been established that:

On October 15, 1998 a contract between Herve Gallion,  acting on his own behalf,
and Cartis International,  Ltd., represented by Mr. Cyril Heitzler with power of
attorney in this matter,  was signed.  The  objective  of this  contract was the
termination of the exclusive rights to the CARTIS trademark.  In accordance with
the terms of article 11 of the fore mentioned contract, Herve Gallion and Cartis
International  Ltd. have  unanimously  decided on February 9, 2000 to render the
contract of October 15, 1998 null and void.  This  cancellation  act constitutes
the annex 1 of this agreement.

On October 15, 1998 a contract between Herve Gallion,  acting on his own behalf,
and CEFCA,  represented by it's General Manager Mr. Cyril Heitzler with power of
attorney in this matter,  was signed.  The  objective  of this  contract was the
termination  of the patent  assignment  and the  transfer  of  technology.  This
contract referred to the patent  applications No: 0934/97 case 1 and No: 2242/97
case 2 , filed with the Swiss  Institute of  Industrial  Property  under the PCT
act,  number  98/00610  case 1 and  case  2 by Mr.  Herve  Gallion,  claiming  a
technology of active carbon and silver for the bactericidal treatment of fluids.

In  accordance  with the terms of  article 11 of the  above-mentioned  contract,
Herve Gallion and CEFCA have decided by agreement signed on February 19, 2000 to
definitely  and  irrevocably  cancel the  contract  of October  15,  1998.  This
contract constitutes annex 2 of this agreement.

Having established this, it has been agreed as follows:

1.  Herve  Gallion,  acting on his own  behalf and being the owner of the patent
applications  No:  0934/97  case 1 and No:  2242/97  case 2 filed with the Swiss
Institute of Industrial  Property under the PCT act,  number 98/00610 case 1 and
case 2 by Mr. Herve  Gallion,  claiming a technology of active carbon and silver
for the bactericidal treatment of fluids.

<PAGE>

The patent  applications  as well as its extensions  constitute  annex 3 of this
agreement.

2. Herve  Gallion is the  exclusive  owner of the CARTIS  trademark,  registered
under the trademark application:

          Reference A 42 Folio 82 No. 163 for the  trademark  "CARTIS"  and A 42
          Folio 82 No. 162 for the  trademark  "CARTIS PWS" filed for the Island
          of Mauritius with the Ministry of Commerce and Industry

          Reference No: 98/12NL dated March 20, 1998 with the National Institute
          for Industrial Property (INPI) in France.

The trademark application constitutes annex 4 of this agreement.

3. Being the sole owner of the patents and the trademark as listed and described
herein,  Herve Gallion has decided to transfer to Cartis,  Inc. the ownership of
the patents and the trademark. This transfer has taken place in conjunction with
a reorganization and valuation of Cartis, Inc.

4. Cartis  Inc.  is  therefore  owner to the direct and  indirect  rights of the
above-mentioned  patent.  The  indirect  rights  herein  referred to include all
improvements,  modifications and extensions of the patent. In addition,  all new
patents  deriving  directly or indirectly  from the  invention  described in the
above-mentioned patent are equally part of this agreement.

5. Cartis Inc.  hereby becomes the owner of the CARTIS  trademark and all rights
derived thereof.

6. From this day on,  Cartis Inc. is  committed  to take over all  existing  and
future  costs in  connection  with the  protection  and  extension  of the above
mentioned patent.  Cartis Inc. also commits to pay any and all costs in order to
protect the patents and their extensions. Moreover, Cartis undertakes to use all
means to ensure protection of the aforementioned patents.

7.  Cartis  Inc.  commits  to  communicate  to  Herve  Gallion  all  information
pertaining to the improvements or extensions of the Patent.

8. For all  improvements,  extensions  or new patent  applications,  Cartis Inc.
agrees  that  only  the name  Herve  Gallion  be  mentioned,  except  in case of
different  instructions  given  directly by Mr.  Gallion and accepted by Cartis,
Inc.

9. Cartis Inc.  commits to pay all fees in connection with the protection of the
CARTIS trademark from this day on.

10. In exchange for the rights and ownership  provided by Mr.  Gallion,  he will
collect compensation as outlined in the subsequent paragraphs.

<PAGE>

11. Cartis, Inc. hereby commits to pay to Herve Gallion a royalty of 5% on sales
before tax,  pertaining to the  exploitation of the  aforementioned  patents and
all, their extensions.

12.  The  terms  and  conditions  of the  royalty  payment  are  defined  in the
subsequent  paragraphs.  Cartis Inc. commits to keep precise accounting of sales
derived from the  exploitations  of the patents and all their  extensions.  Such
accounting  will be given to Mr.  Gallion at the end of each  calendar  quarter,
without special request on his part, or within 8 days of a written request.

The  royalty is assessed on the pre-tax  sales  underlying  the  entirety of the
process to make the device as described in Article 1.

The  royalty  rate is 5% of  sales  as  aforementioned  described,  with a price
revision as early as the second year of  operations.  The royalties will be paid
within 30 days following the end of each calendar month.

The  calculation of royalties  under this agreement will start at the end of the
first quarter in 2001, for the period starting January 1, 2001.

A recap will be addressed to Mr.  Gallion with all details  regarding  quantity,
price etc.

In case of  non-payment  in time,  the default rate will be the statutory  rate.
After 2 months, the statutory rate will be increased by 2%.

13. The royalty is applicable  until the patents expire,  or when all extensions
or new patents derived from the original patent expire.

14. Any change to the current agreement has to be in writing.

15. Applicable law: Florida.

16. Cartis,  inc.  commits to register this  agreement  within 12 monts from the
signature of this agreement.

Palm Beach, February 19, 2000
                                             CARTIS International, Ltd.
/s/  Herve Gallion                           /s/  Cyril HeitzlerEXHIBIT 10.6

           CONTRAT D' ACQUISITION DU MATERIEL CARTIS ET DES DROITS DE
                          FABRICATION DU PROCEDE CARTIS

Le present contrat est conclu entre

D'une part,

La societe ADVANCED  TECHNOLOGIES  DEVELOPMENT COMPANY LIMITED,  ayant son siege
social suite A, Regal House,  Queensway GIBRALTAR,  enregistree a Gibraltar sous
le numero 147065,  representee  par Monsieur Herve Gallion,  ayant tous pouvoirs
[a] cet effet

                     Ci-apres denommee ATD

Et d'autre part,

La societe  CARTIS  Inc.  ayant son siege a Palm Beach,  265  Sunrise Av.  33480
representee  par Mr Cyril  Heitzler  autorise par une resolution de son Board of
Directors en date du 21 fevrier  2000 lui donnant tous  puovoirs la signature de
se contrat.

                     Ci-apres denommee Cartis Inc.

           Il est prealablement etabli ce qui suit :

Il a ete signe en date du 15 octobre  1998,  un contrat  entre ATD repesente par
Herve Gallion et la societe CEFCA representee par son Gerant Cyril Heitzler.  Ce
contrat avait pour objet la prestation de service et de fourniture exclusive des
reacteurs destines a la fabrication du Produit appele CARTIS.

En accord avec les termes de l'article 17 de ce susmentionne,  ATD at Cartis Inc
ont  decide  par un acte signe en date du 21  fevrier  2000  d'annuler  de facon
irrevocablee et definitive ce contrat du 15 Octobre 1998.

Il a ete signe en date du 15 octobre 1998, un contrat entre ATD  representee par
Herve  Gallion et la societe  Cartis  International  Ltd  representee  par Cyril
Heitzler et Philippe Dardel. Ce contrat avait pour objet la fourniture exclusive
des produits CARTIS.

En accord avec les termes de'article 18 du contrat  susmentionne,  ATD et Cartis
Internaional  Ltd ont  decide  par un acte  signe  en  date  du 21  ferier  2000
d'annuler de facon irrevocable et definitive ce contrat du 15 Octobre 1998.

Les deux  precedents  contrats  ci-dessus  mentionnes sont donc annules de facon
definitive et remplaces selon les termes et modalites  definies dans la presente
convention.

Ceci etabli, il a ete convenu ce qui suit :

1/ ADT  desormais  libre  de  toute  engagement,  cede a  Cartis  Inc.  de facon
irrevocable  et  inconditionelle  la pleine  propriete  en fruit et unsufruit du
materiel  jusqu'a  present  utilise  par CEFCA  pour la  fabrication  du produit
Cartis.  Le  materiel  est detenu  dans les locaux de CEFCA et restera  pour son
exploitaion future dans les locaux de CEFCA.

2/ Le material vise dans l'article 1 de la presente convention est detaille dans
l'annexe 4 du present contrat.

<PAGE>

3/ A  compter  de ce  jour,  le  materiel  vise  a  l'article  2 de la  presente
convention  devient  propriete  exclusive de Cartis Inc qui acquiert par la meme
tous les droits technologiques relatifs a ce materiel.

4/ Cartis  Inc.  sera en charge  d'assurer  la  maintenance,  l'entretien  et le
developpement futur des machines visees dans la presente convention.

5/ ADT cede  egalement a Cartis Inc.  la pleine et entiere  propriete  de droits
technologiques  y  afferants  des moules et pieces  electroniques  decrits  dans
l'annexe 5 de la presente convention.

6/ Dans le cadre de  l'execution de la presente  convention ATD declare  qu'elle
n'a aucun  contrat  ou  engagement  relatif a la  fabrication  du produit ou des
appareils Cartis ou relatif a la detention du materiel transfere ce jour.

7/ En  contrepartie de  l'acquisition  par Cartis Inc. du materiel et des droits
ci-dessus  enumeres,  le Board of Directors de Cartis Inc a, par une  resolution
signee  en date  du 21  fevrier  2000 et  consituant  l'annexe  6 de ce  present
contrat,  emis au profit de ADT 3'000'000 (trois  millions)  d'actions de Cartis
Inc sous la legende de la regle 144.

8/ Ce present contrat rend nul et non avenu toute convention, tout engagement ou
autres qu'ATD aurait pu asser au regard de tous droits relatifs au materiel vise
par la presente convention ou a la fabrication des Produits Cartis.

9/ Tout  litige  regardant  l'execution  de la  presente  convention  sera de la
competence exclusive des tribunaux de l'etat de Floride.

Fait a Palm Beach (FL) en deux examplaires, le 21 fevrier 2000

Pour ATD                                            Pour Cartis Inc
Herve Gallion                                       Cyril Heitzler

/s/ Herve Gallion                                   /s/ Cyril Heitzler
--------------------                                --------------------

Ce contrat est signe et paraphe de meme que les 6 annexes

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