CA31747A - Appareil de bureau central de telephone - Google Patents

Appareil de bureau central de telephone

Info

Publication number
CA31747A
CA31747A CA000031747A CA31747DA CA31747A CA 31747 A CA31747 A CA 31747A CA 000031747 A CA000031747 A CA 000031747A CA 31747D A CA31747D A CA 31747DA CA 31747 A CA31747 A CA 31747A
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
CA000031747A
Other languages
English (en)
Inventor
John A. Seely
Theodore N. Vail
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 CA31747A publication Critical patent/CA31747A/fr
Expired legal-status Critical Current

Links

CA000031747A Appareil de bureau central de telephone Expired CA31747A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA31747T

Publications (1)

Publication Number Publication Date
CA31747A true CA31747A (fr) 1889-07-17

Family

ID=45148287

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000031747A Expired CA31747A (fr) Appareil de bureau central de telephone

Country Status (1)

Country Link
CA (1) CA31747A (fr)

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