FR496331A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements in methods and apparatus for the use of radiant pulses as signals and other applications
Assignee: Submarine Signal Co
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Filing: 1919-02-12
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Granted: 1919-11-04
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Expires: 1939-02-12
Abstract
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Inventors
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Bibliographic Details
Application Number
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Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 17:35
CPC Classifications
H; H04; H04B; H04B10/00; H04B10/11
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