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Publication of FR759473ApublicationCriticalpatent/FR759473A/fr
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B9/00—Order telegraph apparatus, i.e. means for transmitting one of a finite number of different orders at the discretion of the user, e.g. bridge to engine room orders in ships
G08B9/02—Details
G08B9/04—Means for recording operation of the apparatus
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Physics & Mathematics
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General Physics & Mathematics
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Time Recorders, Dirve Recorders, Access Control
(AREA)
FR759473D1932-08-271933-07-13Dispositif enregistreur utilisable notamment pour la poignée d'un télégraphe
ExpiredFR759473A
(fr)