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US2504999A
(en)
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Electric signaling system
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GB1244297A
(en)
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A data communication system
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US2468462A
(en)
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Telegraph transmitter control mechanism
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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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US2074423A
(en)
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Selecting system
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US2728906A
(en)
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Telegraph signal receiving system
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US1945470A
(en)
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Signal transmitting apparatus
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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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US1855244A
(en)
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Telegraph system
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US2076672A
(en)
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|
Stock quotation system
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US1107365A
(en)
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Printing-telegraph.
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US3127519A
(en)
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Switching matrices with protection against short-circuit in the gates at the crossings
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US2996704A
(en)
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Method of and apparatus for generating coded signals
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US2724743A
(en)
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Electronic register translators
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US2251666A
(en)
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Impulse sender
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US2113611A
(en)
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Communication system
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US1851956A
(en)
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Method of and apparatus for signaling in high speed telegraph systems
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US2420546A
(en)
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Remote control system
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US2161586A
(en)
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Communication system
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