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SIGNAUX ELECTRIQUES POUR CHEMINS DE F Cie
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SIGNAUX ELECTRIQUES POUR CHEMINS DE F Cie
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Application filed by SIGNAUX ELECTRIQUES POUR CHEMINS DE F CiefiledCriticalSIGNAUX ELECTRIQUES POUR CHEMINS DE F Cie
Application grantedgrantedCritical
Publication of FR435207ApublicationCriticalpatent/FR435207A/fr
H01H7/00—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
H01H7/08—Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts with timing by mechanical speed-control devices
FR435207D1911-10-131911-10-13Commutateur électrique à temps
ExpiredFR435207A
(fr)