REF ID:A364202 

P.ETITION 

TO THE COMMISSIONER OF PATENTS: 

Your petitioner~, WilligJp....l..._F,ri§~-~~--

~ 

citizen~ of the United States residing at _l9,3_g MjljtG.rz RQB~,~ 'IJ:~~..,.JL._Q. ~;~:: ________ _ 

and-WhOse past-Office address OCStg.O, 30340_, TM PentaB.On, \11ashi.nzt.on 22• 12..-D. _ __ · pray-Jl. that Let~ers Patent may be granted to 

·-----------~ for the improvement in __ --·- AUTHENTIOATI!~G DEVICE 

set forth in the annexed Specification. 

And ~.ha....... hereby irrevocably give~ control of his ~ application 

for Letters Patent to the Secretary of War, and appoint.§__ William D. Hall, 

whose post-office address is care of the Chief Signal Officer, Pentagon Building, 

Washington, D. a., attorney with full power of substitution and revocation to 

prosecute this application, to make alterations and amendments therein, to 

sign his name __ to the drawings, to receive the Letters Patent, and to 

transact all business in the United States Patent Office connected therewitho 

Signed at ---...,.,.,.~- in the County of _Arlington 

and State of _ __;,V.;;;;;ir;;.lga;i;:;;;n;;;;;i;;;;;a-.. ------ this 23rd day of August 19 44 

(Sign here /_s/ William F. Friedm8:!,l 

(first name in full) 1 

§_P E C I F I C A T I 0 N 

TO ALI, WHOM IT MAY CONCERNs 

BE IT KNOWN, That __ ,EJJiam F. Friedman citizen 

of the United States residing at ----------~ in the County of 

and State of -------- have invented certain new and useful improvements in ______ -A3!,t}lenticating 

of which the following is a specification: 

The invention described herein may be manufactured and used by or for the 

Government for governmental purposes, without th~ payment of any royalty. thereon 0 

24-67424-200 

@'pproved for Release by NSA on 07-29-2014 pursuantto E.O. 1352a 
rF ID:A364202 • 

IN TESTIMONY VI/HEREOF I'af'f'lx my signature. 

/s/ William F. Friedman 

(Sign here, first name in full) 

0 AT H 

STATE OF VIRGINIA 

) 

) ss. ______ co_un __ t_y __ o_f_Ar __ l_ing ___ to_n________ ) 

William F. Friedman , the above-named petitioner, being 

_sw_o_rn-... (o-r-a'""'t-r--1_rm_e--id_)_,_d_e_po-se_s_an_d_s_a_y_s_t_hat he is a citizen of' the United States 

of America and resident of , that he verily believes hims-e=-1r"r-to:-o~b-e--=t~h-e_o_r-::oi-g .... i-na-i..-, -f~i~r-s'""!!t~,-an--.d~s-o~l-e--:-in_ve_n_to_r_o'""!!f-· 

the improvement in AUTHENTICATING DEVICE 

described and claimed in the annexed specification; that he does not know and does 

not believe that the same was ever known or used before his invention or discovery 

thereof', or patented or described in any printed publication in any country before 

his invention or discovery thereof, or more than one year prior to this application, 

or in public use or on sale in the United States for more than one year prior to 

this application; that said invention has not been patented in any country foreign 

to the United States on an application filed by him or his legal representatives 

or assigns more than twelve months prior to this application; and that no application 

tor patent on said improvement has been filed by him or his legal representatives 

or assigns in any country foreign to the United States. 

SWORN to and subscribed before me this 23rd 

(SEAL) 

(Seal here, to be impressed 

in paper.) 

/s/ William F. Friedman 

(Sign here, first name in fUllJ 

day of August , 19 44 • 

---------------· ------

/s/ Marie Susan Palmer 

Notary PUblic S/28/46 

24-61699ABCD