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CA289853A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA289853A
CA289853A CA289853A CA289853DA CA289853A CA 289853 A CA289853 A CA 289853A CA 289853 A CA289853 A CA 289853A CA 289853D A CA289853D A CA 289853DA CA 289853 A CA289853 A CA 289853A
Authority
CA
Canada
Prior art keywords
telephone system
telephone
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
CA289853A
Other languages
French (fr)
Inventor
Winkel Ulrich
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.)
Siemens and Halske AG
Original Assignee
Siemens and Halske AG
Publication date
Application granted granted Critical
Publication of CA289853A publication Critical patent/CA289853A/en
Expired legal-status Critical Current

Links

CA289853A Telephone system Expired CA289853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA289853T

Publications (1)

Publication Number Publication Date
CA289853A true CA289853A (en) 1929-05-21

Family

ID=35226665

Family Applications (1)

Application Number Title Priority Date Filing Date
CA289853A Expired CA289853A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA289853A (en)

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