Patent applications, June 1945

This file is from the National Archives and Records dediCated-administration (NARA2), College Park, Maryland, R.G. 457 (Records of the National Security Agency), Box 808


Op-20-G/mel

SECRET

MEMORANDUM

15 June 1945

From: Lt. Cdr. R. H. Rose, USNR

To: Op-20-G-4

Subj: Patent Applications of NCR Company – Secrecy Order on.

1. It is propsed to recommend withdrawal of secrecy order on the following patent applications. Permission is requested thereafter.

488496 – Mumma

Electronic impulse generator for producing a burst of a precalculated number of pulses of unit value, under control of a key bank.

531694 – Mumma

Electron tube counting ring in which succeeding tubes are fixed in sequence.

453834 – Mumma

Device for producing impulses in bursts, that may be counted by an electronic counter. Controlled by keyboard.

519851 – Mumma

Device for producing impulses as above, with means for creating one impulse in tube anode circuit for each full operation of counting ring.

477096 – Mumma et al

Communication system in which data is transmitted as bursts of different numbers of identical signals. Electronic impulses as above are used to form symbols.

458546 – Desch et al

Communication system in which bursts of impulses are used as above.

523024 – Desch et al

Communication system as above. Divisonal case.

523025 – Desch et all

Communication system as above. Divisional case.

489506 – Desch et al

Plurality of gaseous discharge tubes in one envelope.

R. H. Rose

[in handwriting]

“OK to clear

488496

531694

489506

E”