CA435034A - Distant talking loud-speaker telephone system - Google Patents

Distant talking loud-speaker telephone system

Info

Publication number: CA435034A
Authority: CA; Canada
Prior art keywords: telephone system; speaker telephone; loud; distant talking; distant
Prior art date: 1946-05-28
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

CA435034A

Other languages

French (fr)

Inventor

F. Hopkins Harris

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

Bell Telephone Laboratories Inc

Publication date

1946-05-28

1946-05-28 Application granted granted Critical

1946-05-28 Publication of CA435034A publication Critical patent/CA435034A/en

Status Expired legal-status Critical Current

Links

CA435034A Distant talking loud-speaker telephone system Expired CA435034A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA435034T

Publications (1)

Publication Number	Publication Date
CA435034A true CA435034A (en)	1946-05-28

Family

ID=35549664

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA435034A Expired CA435034A (en)			Distant talking loud-speaker telephone system

Country Status (1)

Country	Link
CA (1)	CA435034A (en)

0
- CA CA435034A patent/CA435034A/en not_active Expired

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