CA320421A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA320421A
CA320421A CA320421DA CA320421A CA 320421 A CA320421 A CA 320421A CA 320421D A CA320421D A CA 320421DA CA 320421 A CA320421 A CA 320421A
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
Other languages
French (fr)
Inventor
Edgar Humphries Horace
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 Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Publication date
Application granted granted Critical
Publication of CA320421A publication Critical patent/CA320421A/en
Expired legal-status Critical Current

Links

CA320421D Telephone system Expired CA320421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA320421T

Publications (1)

Publication Number Publication Date
CA320421A true CA320421A (en) 1932-03-08

Family

ID=35280975

Family Applications (1)

Application Number Title Priority Date Filing Date
CA320421D Expired CA320421A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA320421A (en)

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