CA684073A - Circuit arrangement for an intercom system with alternative operation - Google Patents

Circuit arrangement for an intercom system with alternative operation

Info

Publication number
CA684073A
CA684073A CA684073A CA684073DA CA684073A CA 684073 A CA684073 A CA 684073A CA 684073 A CA684073 A CA 684073A CA 684073D A CA684073D A CA 684073DA CA 684073 A CA684073 A CA 684073A
Authority
CA
Canada
Prior art keywords
circuit arrangement
intercom system
alternative operation
alternative
intercom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA684073A
Inventor
Bayer Rudolf
Knauer Hans-Ulrich
Vogel Georg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Standard Telephone and Cables Manufacturing Canada Ltd
Original Assignee
Standard Telephone and Cables Manufacturing Canada Ltd
Publication date
Application granted granted Critical
Publication of CA684073A publication Critical patent/CA684073A/en
Expired legal-status Critical Current

Links

CA684073A Circuit arrangement for an intercom system with alternative operation Expired CA684073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA684073T

Publications (1)

Publication Number Publication Date
CA684073A true CA684073A (en) 1964-04-07

Family

ID=35986692

Family Applications (1)

Application Number Title Priority Date Filing Date
CA684073A Expired CA684073A (en) Circuit arrangement for an intercom system with alternative operation

Country Status (1)

Country Link
CA (1) CA684073A (en)

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