CA189061A - Systeme de transmission telephonique - Google Patents

Systeme de transmission telephonique

Info

Publication number
CA189061A
CA189061A CA000189061A CA189061DA CA189061A CA 189061 A CA189061 A CA 189061A CA 000189061 A CA000189061 A CA 000189061A CA 189061D A CA189061D A CA 189061DA CA 189061 A CA189061 A CA 189061A
Authority
CA
Canada
Prior art keywords
transmission system
telephone transmission
telephone
transmission
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
CA000189061A
Other languages
English (en)
Inventor
Ray S. Wilbur
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA189061A publication Critical patent/CA189061A/fr
Expired legal-status Critical Current

Links

CA000189061A 1918-02-05 1918-02-05 Systeme de transmission telephonique Expired CA189061A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA189061T 1918-02-05

Publications (1)

Publication Number Publication Date
CA189061A true CA189061A (fr) 1919-03-11

Family

ID=45308712

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000189061A Expired CA189061A (fr) 1918-02-05 1918-02-05 Systeme de transmission telephonique

Country Status (1)

Country Link
CA (1) CA189061A (fr)

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