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Publication of FR907697ApublicationCriticalpatent/FR907697A/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
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FR907697D1944-11-081944-11-08Dispositif de distribution par ordre chronologique de phénomènes électriques et électro-mécaniques
ExpiredFR907697A
(fr)