CA539700A - Systemes telephoniques - Google Patents

Systemes telephoniques

Info

Publication number: CA539700A
Authority: CA; Canada
Prior art keywords: telephone systems; telephone; systems
Prior art date: 1957-04-16
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

CA539700A

Other languages

English (en)

Inventor

R. Yates Kenneth

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.)

Siemens Brothers and Co Ltd

Original Assignee

Siemens Brothers and Co Ltd

Publication date

1957-04-16

1957-04-16 Application granted granted Critical

1957-04-16 Publication of CA539700A publication Critical patent/CA539700A/fr

Status Expired legal-status Critical Current

Links

CA539700A Systemes telephoniques Expired CA539700A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA539700T

Publications (1)

Publication Number	Publication Date
CA539700A true CA539700A (fr)	1957-04-16

Family

ID=35694351

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA539700A Expired CA539700A (fr)			Systemes telephoniques

Country Status (1)

Country	Link
CA (1)	CA539700A (fr)

0
- CA CA539700A patent/CA539700A/fr not_active Expired

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