REF ID:A2436316 

'l Januar7 1949 

SUBJEOTa PATD'l'8 Olf BLBOfBO-MBOHAl'IIOAL GIPBER MACHINES 

The paten.ta 11•ted belov are those vhich mq be per- tinent to the Hebem cue inaamuch as theJ contain eom.e ot 

the teaturea cla•d ill h!a 111vent1cma vhi.ch are posa1b·"f'ir==== 

1lltr d b;y U. 8., machille 

~he two Bebern patent. vhich COJltaiD the claims p:reaume·,,__ __ to be intr~~d'------=ar~e=---.L__ __________________ -------. 

o. s. 11 861,857 • .til•d 17 lal JJl?Z (issued i 

June l.9'2 -----------------

Stated brie.t'l.7 au.4 in pnen1 term.a there are •even te ture 

claimed in the•• patents ~ldoh m8.1' inht • ee arei 

I Intei- •abJ.e and 1nvertnble l'Otol's. 

II 

lII Pol and ratobet meaua toi- stepping the 

rotora. 

IV Eucip'bei--decipher n1tcb. which NVei'ff• -------- cbtcUit patba through tho :rotor • 

v Cam contour• on the i-oton 

VI Mean• tor acipheri.Dg apa~a and division o 

c1pher tut illto t1ve-lettei- groupa. 

VII llleots-o-magnotic a1'Ql>ing or tlle ntoi-a 

controlled tl'Oa tlJe ke7boatd.----------
...., r"" 11.-;i~ 

REF ID:~ 

The paten.ta 1n the attached llatiDg are uraaged 1n 

orcer according to eeliaat teue Sftrt1• U!ld.e:r ftV thoae 

i tema among the seven Dallied a ve w Ch appear · val."i.oua 

paten.ta ee 1ndicated.. Ot theae t'eatul'ea., Item I• "Iaterchengeabl.e and 1Bvertab1• rotoi-a.n is the cmlJ' au vh1ch doea 

not occur 1n om or more pie patenta. Boweve, XtGDI v. "Cam 

contours cm "tbe rotors to control. their stepping•• oJ.Jcvu Olll7 

ill the ltol"Jl patnta Oil the COR''WZ'Cial. mode1 Gr tha 'Rn1gma ma.ch'•• and the earliest issue dates ~ tha8• Mtellta are 

ODlJ' a tew montha ahead of liebern•s r1;;:t, date (l.7 l!q J.927) tor the patent in vhich he det.ini.tel.7 ____ ma this .reaturo. 

All tol4. tbei-e aN •ome a1xt1' aepuate patated 1nven· 

ti.ona relat1Jlg to l"Otor macb'"• which l:lave QPM"4 a'fnce 

J.911. De a1Xteen. llate4 hel'tt en OlllJ' thoae wh!.ch it :1B 

thought might pi-ave uaetul in cmmeeUmt ir1th the llabftzl cue. 
REF ID:A2436316 

... ._. P.P. 

19 Oct. 1916 

(G.B. 1915-12t001) 

,, ''!" 

~;- '~ ....... 

.. 

• 

III (l'ot a true 

ro wr 1"lB cw.ne- JJ&S 

single drum vith ~.nterc?n..~ctec rtnfe 

ot per1pbercl 

coatact poiD.ta). 

Pint patent 

employ.!.rll!: rotor 

pr1nc1ple(a1ngle 

rotor aa deacribed. 

but uao or aeveral 

in ser~ea 1a 

suggested as wll a a 

tact that tJMQ a:N 

1ntercbaDgea.bl.e). 

III VII (S1m11ar 

to ~uthb7 mech1a. ~vi.dee t,. two 

:rotatiag contact 

drum.a used 1n 

seriea). 

Botating drmnl. with 

CCJDtacta 1ntel'-

CC"De0ted Vig:'neZ'e .. vise along cllagoml.a (citied b7 

Koch). 

0:. IV (ftnt 

~tellt.1ff~ 

~~i.r0 on a 
:mmr.t'Oll ud/or 

A85IORP. 

l3eJ'8r• P.O.~. 

Daim• 1' .O. 

Sa!Jerb1u•• A. 

(B.Y. lq. ) -..cnar1tt!a" 

T:r1rrJ:.!· 

•·obtarm,. A.G. 

Ya>n•• B • .A. sr. 

·-•beba1 .. t 

le8111'1tu 

' r 

~·I : I•• ·•· r 

REF ID:A2436316 

U. s. P.A!. liG. EiiitiE5T FILIIG DATF BARI.U:5T ISSUE DA'l'E 

·14 .• ] .5~ .•• ,(IO 

~6 }.•Jg. l ~19 

(DOD!J~:<~ ~6 .. IJ.0) 

10 Oat. 1919 

(q. -~~"'" t;~. :·7q) . -. . . 

~ ;.1e... 19~1 

( ~·.:e~'.;::l 59 .. ~06) 

13 Jn~1e 19?0 

(uer..ny 3a7 .::.-r;) 

1 Jul7 1921 .G~l'mruliJ ~"l§.1 660) 

ll Oc ~. 1 J~ ;. (F~nJlGl'J r::4:.,,0$i3 j 

:-7 June 19~· 3 

( .:;' .l"Anl .. d 559. 99 :. ) 

&;"0 .lut;. 192' 

(Pran"e 561,910) 

, ... , T.'....... , r.'.J "C· .., ..... we ..., ..... , 

(Ocmlan1 -~.566) 

II• III• VII 

{R.-, ~-orR ur.se4 are 

"Jialt- J=.obea• 

t~':le). 

VI (:c.prov1 ••ta 

cm Pl~ {:8d1Dg ?>&ten~). 

IV• v.r., VII 

VI• VII 

p~tent 

rv. m:i& w1Ul 

•t1'1c • et rot~. 

VII 

tPT 

·-
REF ID:A2436316 

IJl\'Elf.i'JR 81lAi/~ H. S. PA.,. MO. 

-u~~~~Md1RW1i~·~'h--------·---------------------------------------------------------------·--------

• ) , ....... 

7 ""b .. 9"7 -c. 

\Fra!\Ce 621.515) 

Ill. V (.Pnt.el&t oa 

cJ:pbei- l.Ul.1. t o:r co~~ierc~&l 1i'..1!1gma) •