CA31748A - Appareil de bureau central de telephone - Google Patents

Appareil de bureau central de telephone

Info

Publication number
CA31748A
CA31748A CA000031748A CA31748DA CA31748A CA 31748 A CA31748 A CA 31748A CA 000031748 A CA000031748 A CA 000031748A CA 31748D A CA31748D A CA 31748DA CA 31748 A CA31748 A CA 31748A
Authority
CA
Canada
Prior art keywords
station apparatus
central station
telephone central
telephone
station
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
CA000031748A
Other languages
English (en)
Inventor
Theodore N. Vail
John A. Seely
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA31748A publication Critical patent/CA31748A/fr
Expired legal-status Critical Current

Links

CA000031748A Appareil de bureau central de telephone Expired CA31748A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA31748T

Publications (1)

Publication Number Publication Date
CA31748A true CA31748A (fr) 1889-07-17

Family

ID=45148288

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000031748A Expired CA31748A (fr) Appareil de bureau central de telephone

Country Status (1)

Country Link
CA (1) CA31748A (fr)

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