CA442941A - Telephone system - Google Patents

Telephone system

Info

Publication number: CA442941A
Authority: CA; Canada
Prior art keywords: telephone system; telephone
Prior art date: 1947-07-15
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

CA442941A

Other languages

French (fr)

Inventor

N. Newstedt Harry

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.)

Nortel Networks Ltd

Original Assignee

Northern Electric Co Ltd

Publication date

1947-07-15

1947-07-15 Application granted granted Critical

1947-07-15 Publication of CA442941A publication Critical patent/CA442941A/en

Status Expired legal-status Critical Current

Links

CA442941A Telephone system Expired CA442941A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA442941T

Publications (1)

Publication Number	Publication Date
CA442941A true CA442941A (en)	1947-07-15

Family

ID=35558168

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA442941A Expired CA442941A (en)			Telephone system

Country Status (1)

Country	Link
CA (1)	CA442941A (en)

0
- CA CA442941A patent/CA442941A/en not_active Expired

Similar Documents

Publication	Publication Date	Title
CA441465A (en)	1947-05-20	Telephone system
CA443405A (en)	1947-08-05	Telephone system
CA445445A (en)	1947-12-09	Telephone system
CA439394A (en)	1947-01-28	Telephone system
CA440708A (en)	1947-04-08	Telephone system
CA440944A (en)	1947-04-22	Telephone system
CA441179A (en)	1947-05-06	Telephone system
CA441180A (en)	1947-05-06	Telephone system
CA441181A (en)	1947-05-06	Telephone system
CA441406A (en)	1947-05-13	Telephone system
CA441947A (en)	1947-06-03	Telephone system
CA442718A (en)	1947-07-08	Telephone system
CA442941A (en)	1947-07-15	Telephone system
CA442988A (en)	1947-07-15	Telephone system
CA443037A (en)	1947-07-22	Telephone system
CA443407A (en)	1947-08-05	Telephone system
CA443721A (en)	1947-08-19	Telephone system
CA443722A (en)	1947-08-19	Telephone system
CA445441A (en)	1947-12-09	Telephone system
CA445442A (en)	1947-12-09	Telephone system
CA445443A (en)	1947-12-09	Telephone system
CA445446A (en)	1947-12-09	Telephone system
CA440102A (en)	1947-03-11	Telephone unit
CA443984A (en)	1947-09-02	Telephone answering system
CA440709A (en)	1947-04-08	Telephone trunking system