........ 

SIGNAL CORPS PATENT BOfu.1iD 

MEETING NO. 2 

REF ~D:A521682e 

p 

y 

April 17, 19.36 

I. 1. The Board met at 2:30 P. M., this date, in Room 3435, 

Munitions Building. Present: All members. 

2. The purpose of this meeting was to take action and make 

the necessary recommendations with reference to inventions of William 

F. Friedman. Said inventions relate to improvements or modifications 

in :nechanical cipher devices, "Converters M-134-Tl and M-134-T-2'!· 

3. The Board finds that: 

l!.• The invention of' Mr. Friedman covering a modification in 

Converter type M-134-Tl is a modification of an invention of Messrs. 

William F. Friedman and George A. Graham, Patent #2,028,772 (JanW'-r.Y' 2S, 

1936). 

E.• The patent referred to above was granted by the CoIIllllissioner 

of Patents i&nder authority contained in Section 4886 of the Revised Statutes 

and that the War Department was given a non-exclusive license thereto and 

that the War Department did not request a complete assignment. 

£• The Board recommends: 

(1) That the action proposed by Mr. Friedman in para.graph 2 

of his memorandum of March 24, 1936, to Research and Development 

Division (THROUGH War Plans and Training Division) be approved, 

and that Mr. Friedman be instructed to submit specifications to 

the Patent Section for the necessary action with a view to obtaining Letters Patent. 

(2)' That the invention be not considered important in the 

National Defense, and that a non-exclusive license to the 

Government, in writing, be required. 

II. 1. The Board finds th~t: 

1

? !;• The invention of Mr. Fried'!lan covering modifications in a 

l cipher device known as "Converter M-134-T2, covers improvements in a 

device now being prosecuted under patent application {/682,096, and under 

which several claims have been allowed. 

£• Whereas, the original invention was not considered of such 

importance as to be placed in the category which provides for its being 

kept secret, the improvements described in the description accompa:rzy-ing 

his memorandum of March 23, 1936, to Research and Development Division, 

through War Plans and Training Division, are considered aa, "Important in 

the National Defense". 

Peclassified and approved for release by NSA on 11-22-2013 pursuant to E.O. 1352§ 
REF ID:A521682e 

£• The Board recommends: 

(1) That the application for patent covering modification in 

Converter M-134-T2 be prosecuted under the provision of Section 

4$36 of the Revised Statutes; 

(2) That, under the provisions of paragraph 6 !_, AR 850~50, 

December 31, 1934, a complete assignment be requested, and, 

(3) That the invention be kept secret. 

Roger·B. Colton, 

Lieut. Col., Signal Corps, 

President. 

w. S. Rumbough, 

Major, Signal Corps, 

Member 

APPROVED: 

George I. Back, 

Captain, Sign.~l Corps, 

Member. 

Walter C. Ellis, 

Major, Signal Corps, 

Recorder. 

J. B. Alliaon, 

Major General, 

Chief Signal Officer of the Army. 
3d Memo Ind. 8 

~~&T Division, OCSigO, April 24, 1936. To: Mr. W. F. Friedman. 

For necessary action in connection with paragraph 3, 2d Indorsement. 

Incl. n/c. 

-.3-

W.-S.~ W. S. Rumbaugh, 

Major, Signal Corps. 
2nd. Memo Ind. 10. 

OCSigO, Research and Development Division, April 23, 1936. Toe Mr. 

w. F• Friedman, T"riROUGH o. I• c., War Plans and Training Division. 

1. At its Meeting No. 2, held April 17, 1936, the Patent Board, 

OGSigO, made the following recommendation with reference to your 

invention covering modifications in convert er M-134-T2 (Application 

Ser. No. 682,096) 1-

"II c. The Board recommends: 

(1) That the application for patent covering modification 

in Converter M-134-T2 be prosecuted under the provision of 

section 4886 of the Revised statutes; 

(2) That, under the provisions of paragraph 6 a, AR-850-50, 

December 31, 1934, a complete assignment be requested, and, 

(3) That the invention be kept secret•" 

2. The proceedings of the patent Board were approved by the 

Chief Signal Officer-on APril 23, 1936. 

3. Your disclosure has been forwarded to the Patent section, 

Research and Development Division, with instructions that application 

be filed for letters patent and that necessary papers be prepared with 

a view to complete assignment by you. 

4. Inclosed for your information is a copy of the proceedings 

of the Patent Board referred to in paragraph l, hereon. 

Roger Colton, 

Lieut. Col., Signal corps. 

1 Incl. 
SIGNAL CORPS PATENT BOARD 

MEETING NO. 2 

REFCID:A521682~ 

0 

p 

y 

April 17, 19.36. 

I. 1. The Board met at 2:30 P. M., this date, in Room 3435, 

Munitions Building. Present: All members. 

2. The Purpose of this meeting was to take action and make 

the necessary recommendations with reference to inventions of William 

F. Friedman. Said inventions relate to improvements or modifications 

in mechanical cipher devices, "Converters M-134-Tl and M-1.34-T-2". 

3. The Board finds that: 

~· The invention of M~. Fried.inan covering a modification in 

Converter type M-134-Tl is a modification of an invention of Messrs. 

William F. Friedman and George A. Graham, Patent #2,028,772 (Januar-J 28, 

1936). 

.£• The patent referred to above was granted by the Com.~issioner 

of Patents under authority contained in Section 4886 of the Revised Statutes 

and that the War Department was given a non-exclusive license thereto and 

that the War Department did not request a complete assignment. 

£.• The Board recommends: 

(1) That the action proposed by Mr. Friedman in paragraph 

2 of his memorandum of March 24, 1936, to Research and Development Division (THROUGH War Plans and Training Division) be 

approved, and that Mr. Friedman be instructed to submit specifications to the Patent Section for the necessary action with 

a view to obtaining Letters Patent. 

(2) That the invention be not considered important in the 

National Defense, and that a non-exclusive license to the 

Government, in writing, be required. 

II. 1. The Boa.rd finds that: 

~· The invention of' Mr. Friedman covering modifications in a 

cipher device known as, "Converter M-l.34-T2, covers improvements in a 

device now being prosecuted under patent application #682,096, and under 

which several claims have been allowed. 

E_. Whereas, the original invention was not considered of such 

importance as to be placed in the category which provides for its being 

kept secret, the improvements described in the description accompanying 

his memorandum of March 23, 1936, to Research and Development Division, 

through War Plans and Training Division, are considered as, "Important in 

the National Defense". 
e REF ID:A521682e 

.£• The Board recommends: 

(1) That the application for patent covering modification in 

Converter M-134-T2 be prosecuted under the provision of Section 

4886 of the Revised Statutes; 

(2) That, under the provisions of paragraph 6 a, AR 850-50, 

December 31, 1934, a complete assignment be requested, and, 

(3) That the invention be kept secret. 

Roger B. Colton, 

Lieut. Col., Signal Corps, 

President. 

W. s. Rumbaugh, 

Major, Signal Corps, 

Member 

APPROVED: 

George I. Back, 

Captain, Signal Corps, 

Member. 

Walter c. Ellis, 

Major, Signal Corps, 

Recorder. 

J. B. Allison, 

Major General, 

Chief Signal Officer of the Army.