CA179851A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA179851A
CA179851A CA000179851A CA179851DA CA179851A CA 179851 A CA179851 A CA 179851A CA 000179851 A CA000179851 A CA 000179851A CA 179851D A CA179851D A CA 179851DA CA 179851 A CA179851 A CA 179851A
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
CA000179851A
Other languages
English (en)
Inventor
William Aitken
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.)
RELAY AUTOMATIC TELEGRAPH COMPANY Ltd
Original Assignee
RELAY AUTOMATIC TELEGRAPH 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 RELAY AUTOMATIC TELEGRAPH COMPANY Ltd filed Critical RELAY AUTOMATIC TELEGRAPH COMPANY Ltd
Application granted granted Critical
Publication of CA179851A publication Critical patent/CA179851A/fr
Expired legal-status Critical Current

Links

CA000179851A 1917-08-10 1917-08-10 Systeme telephonique Expired CA179851A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA179851T 1917-08-10

Publications (1)

Publication Number Publication Date
CA179851A true CA179851A (fr) 1917-10-16

Family

ID=45299504

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000179851A Expired CA179851A (fr) 1917-08-10 1917-08-10 Systeme telephonique

Country Status (1)

Country Link
CA (1) CA179851A (fr)

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