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Korrespondenz mit dem Patent Office, London und Patentunterlagen zu britischen Patentanmeldungen vo…

Signature mark NL 124/124
Title Korrespondenz mit dem Patent Office, London und Patentunterlagen zu britischen Patentanmeldungen von Dirks
Contains Patent Specification, London, u. Beschreibung betr. 800.233: "Improvements Relating to Signal Heads for Recording and Sensing Magnetic Signals", 1955-1958
Korrespondenz mit dem Patent Office, London, u. Beschreibung betr. Patent:
820.115 "Improvements in Storage Devices for Signals", 1955-1959
821.047 "Improvements Relating to Keyboard-Operated Devices", 1956-1958
35562/55 "Improvements in Electric Pulse Generation", 1955-1959
Korrespondenz mit dem Patent Office, London u. vorläufige Beschreibung betr. Patentanmeldung
36266/55 "Improved Multiplying Devices in Electric Calculators", 1956-1959
Vorläufige Beschreibung betr. Patentanmeldung32962/59 "Improvements Relating to Keyboard-Operated Devices", 1959
Duration 1950 - 1960
Scope 1 M. ms. u. gedr., Kopie
Rights notice CC BY-SA 4.0
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