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US2468462A
(en)
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Telegraph transmitter control mechanism
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SE447186B
(sv)
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Forfarande och anordning for detektering av ett digitalt kodordsmeddelande
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US2116549A
(en)
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Telegraph system
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US2111352A
(en)
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Train dispatching system
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US4079195A
(en)
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Method and apparatus for the synchronization of a deciphering device functioning as a receiver with an enciphering device functioning as transmitter
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SE178096C1
(enExample)
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US2574904A
(en)
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Endless chain of counting relays
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US2074423A
(en)
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Selecting system
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US1709031A
(en)
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Supervisory control system
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US2728906A
(en)
|
|
Telegraph signal receiving system
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US1945470A
(en)
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Signal transmitting apparatus
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US1210912A
(en)
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Selecting mechanism and systems.
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US2698426A
(en)
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Pulse responsive selector
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US3716674A
(en)
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Variable timing automatic interrupter circuit for common telephone sender equipment
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US2248583A
(en)
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Code translating mechanism
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US1805114A
(en)
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Printing telegraph receiver
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US2374908A
(en)
|
|
Selective calling system
|
|
US1855244A
(en)
|
|
Telegraph system
|
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US1107365A
(en)
|
|
Printing-telegraph.
|
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US1881453A
(en)
|
|
Telegraph printer exchange system
|
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US2724743A
(en)
|
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Electronic register translators
|
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US2251666A
(en)
|
|
Impulse sender
|
|
US2113611A
(en)
|
|
Communication system
|
|
US1851956A
(en)
|
|
Method of and apparatus for signaling in high speed telegraph systems
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US2420546A
(en)
|
|
Remote control system
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