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PIERRE-EMMANUEL-EMILE RAVEROT
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PIERRE-EMMANUEL-EMILE RAVEROT
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Application filed by PIERRE-EMMANUEL-EMILE RAVEROTfiledCriticalPIERRE-EMMANUEL-EMILE RAVEROT
Application grantedgrantedCritical
Publication of FR15744EpublicationCriticalpatent/FR15744E/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
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR15744D1911-06-221912-03-19Perfectionnement dans l'asservissement à distance par renvoi électromagnétique de mouvement
ExpiredFR15744E
(fr)