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INTERNAT TELECHRONOMETER COMPA
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INTERNAT TELECHRONOMETER COMPA
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Application filed by INTERNAT TELECHRONOMETER COMPAfiledCriticalINTERNAT TELECHRONOMETER COMPA
Application grantedgrantedCritical
Publication of FR398682ApublicationCriticalpatent/FR398682A/fr
H04M3/08—Indicating faults in circuits or apparatus
H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
FR398682D1909-01-211909-01-21Perfectionnements aux appareils téléphoniques
ExpiredFR398682A
(fr)