CA232756A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA232756A
CA232756A CA232756A CA232756DA CA232756A CA 232756 A CA232756 A CA 232756A CA 232756 A CA232756 A CA 232756A CA 232756D A CA232756D A CA 232756DA CA 232756 A CA232756 A CA 232756A
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
CA232756A
Other languages
English (en)
Inventor
D. Currier Hiram
R. Eaton George
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.)
Kellogg Switchboard and Supply Co
Original Assignee
Kellogg Switchboard and Supply Co
Publication date
Application granted granted Critical
Publication of CA232756A publication Critical patent/CA232756A/fr
Expired legal-status Critical Current

Links

CA232756A Systeme telephonique Expired CA232756A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA232756T

Publications (1)

Publication Number Publication Date
CA232756A true CA232756A (fr) 1923-07-17

Family

ID=35130129

Family Applications (1)

Application Number Title Priority Date Filing Date
CA232756A Expired CA232756A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA232756A (fr)

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