BR7606759A -
TELEPHONE CIRCUIT TO ALLOW THE OPTIONAL USE OF A RETENTION BUTTON
- Google Patents
TELEPHONE CIRCUIT TO ALLOW THE OPTIONAL USE OF A RETENTION BUTTON
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Publication number
BR7606759A
BR7606759ABR7606759ABR7606759ABR7606759ABR 7606759 ABR7606759 ABR 7606759ABR 7606759 ABR7606759 ABR 7606759ABR 7606759 ABR7606759 ABR 7606759ABR 7606759 ABR7606759 ABR 7606759A
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Priority claimed from US05/622,287external-prioritypatent/US4004107A/en
Application filed by Int Standard Electric CorpfiledCriticalInt Standard Electric Corp
Publication of BR7606759ApublicationCriticalpatent/BR7606759A/en