CA171894A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA171894A
CA171894A CA000171894A CA171894DA CA171894A CA 171894 A CA171894 A CA 171894A CA 000171894 A CA000171894 A CA 000171894A CA 171894D A CA171894D A CA 171894DA CA 171894 A CA171894 A CA 171894A
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
CA000171894A
Other languages
French (fr)
Inventor
Nils G. Palmgren
G.A. Betulander
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.)
BETULANDER AUTOMATIC TELEPHONE COMPANY Ltd
Original Assignee
BETULANDER AUTOMATIC TELEPHONE COMPANY Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BETULANDER AUTOMATIC TELEPHONE COMPANY Ltd filed Critical BETULANDER AUTOMATIC TELEPHONE COMPANY Ltd
Application granted granted Critical
Publication of CA171894A publication Critical patent/CA171894A/en
Expired legal-status Critical Current

Links

CA000171894A 1914-11-24 1914-11-24 Telephone system Expired CA171894A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA171894T 1914-11-24

Publications (1)

Publication Number Publication Date
CA171894A true CA171894A (en) 1916-09-12

Family

ID=45291552

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000171894A Expired CA171894A (en) 1914-11-24 1914-11-24 Telephone system

Country Status (1)

Country Link
CA (1) CA171894A (en)

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