FR813524A - Système de couplage pour empêcher les fausses communications dans des installations télégraphiques au moyen de sélection fictive
- Google Patents
Système de couplage pour empêcher les fausses communications dans des installations télégraphiques au moyen de sélection fictive
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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Application filed by Siemens and Halske AG, Siemens AGfiledCriticalSiemens and Halske AG
Application grantedgrantedCritical
Publication of FR813524ApublicationCriticalpatent/FR813524A/fr
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L12/00—Data switching networks
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Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Monitoring And Testing Of Exchanges
(AREA)
FR813524D1935-11-151936-11-14Système de couplage pour empêcher les fausses communications dans des installations télégraphiques au moyen de sélection fictive
ExpiredFR813524A
(fr)