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SE125608C1
(https=)
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US2403009A
(en)
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Pulse generating system and its use in signal transmission systems
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US2145018A
(en)
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Clock
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US2343297A
(en)
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Telegraph system and apparatus
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US2301822A
(en)
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Impulse device
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US238977A
(en)
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Chronometric signaling apparatus for telephone-lines |
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US2327176A
(en)
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Driving clutch and control means therefor
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US2467566A
(en)
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Message information storage device
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US2937367A
(en)
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Data handling apparatus
|
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US1305620A
(en)
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Telegraph system |
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SE190326C1
(https=)
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US1060939A
(en)
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Automatic telegraph-transmitter.
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US1764316A
(en)
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Telegraph system
|
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US2145264A
(en)
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Facsimile printing telegraph receiver
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US845890A
(en)
|
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Electrically-driven step-by-step machine.
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US2089532A
(en)
|
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Telegraph system
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US1313816A
(en)
|
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harris |
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US2025778A
(en)
|
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Telegraph typewriter system and apparatus
|
|
US2725417A
(en)
|
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Step-by-step coordinate type printer and transmitter therefor
|
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US258439A
(en)
|
|
Printing-telegraph |
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US322690A
(en)
|
|
Pateick b |
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US368217A
(en)
|
|
Printing-telegraph |
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SU41591A1
(ru)
|
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Способ и устройство дл телеграфировани
|
|
US180090A
(en)
|
|
house |
|
US1151216A
(en)
|
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Selective electrical signaling apparatus.
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