CA31749A - Appareil de bureau central de telephone - Google Patents

Appareil de bureau central de telephone

Info

Publication number
CA31749A
CA31749A CA000031749A CA31749DA CA31749A CA 31749 A CA31749 A CA 31749A CA 000031749 A CA000031749 A CA 000031749A CA 31749D A CA31749D A CA 31749DA CA 31749 A CA31749 A CA 31749A
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
CA000031749A
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 CA31749A publication Critical patent/CA31749A/fr
Expired legal-status Critical Current

Links

CA000031749A Appareil de bureau central de telephone Expired CA31749A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA31749T

Publications (1)

Publication Number Publication Date
CA31749A true CA31749A (fr) 1889-07-17

Family

ID=45148289

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000031749A Expired CA31749A (fr) Appareil de bureau central de telephone

Country Status (1)

Country Link
CA (1) CA31749A (fr)

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