CA415421A - Instrument telephonique - Google Patents

Instrument telephonique

Info

Publication number
CA415421A
CA415421A CA415421A CA415421DA CA415421A CA 415421 A CA415421 A CA 415421A CA 415421 A CA415421 A CA 415421A CA 415421D A CA415421D A CA 415421DA CA 415421 A CA415421 A CA 415421A
Authority
CA
Canada
Prior art keywords
telephone instrument
telephone
instrument
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
CA415421A
Other languages
English (en)
Inventor
Frank Stehlik Rudolph
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.)
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Original Assignee
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA415421A publication Critical patent/CA415421A/fr
Expired legal-status Critical Current

Links

CA415421A Instrument telephonique Expired CA415421A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA415421T

Publications (1)

Publication Number Publication Date
CA415421A true CA415421A (fr) 1943-09-28

Family

ID=35524630

Family Applications (1)

Application Number Title Priority Date Filing Date
CA415421A Expired CA415421A (fr) Instrument telephonique

Country Status (1)

Country Link
CA (1) CA415421A (fr)

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