CA232449A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA232449A
CA232449A CA232449A CA232449DA CA232449A CA 232449 A CA232449 A CA 232449A CA 232449 A CA232449 A CA 232449A CA 232449D A CA232449D A CA 232449DA CA 232449 A CA232449 A CA 232449A
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
CA232449A
Other languages
French (fr)
Inventor
Alexander Laidlaw Ernest
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 CA232449A publication Critical patent/CA232449A/en
Expired legal-status Critical Current

Links

CA232449A Telephone system Expired CA232449A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA232449T

Publications (1)

Publication Number Publication Date
CA232449A true CA232449A (en) 1923-07-03

Family

ID=35129822

Family Applications (1)

Application Number Title Priority Date Filing Date
CA232449A Expired CA232449A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA232449A (en)

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