CA499356A - Telephone systems - Google Patents

Telephone systems

Info

Publication number: CA499356A
Authority: CA; Canada
Prior art keywords: telephone systems; telephone; systems
Prior art date: 1954-01-19
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

CA499356A

Other languages

French (fr)

Inventor

Den Hertog Martinus

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.)

International Standard Electric Corp

Original Assignee

International Standard Electric Corp

Publication date

1954-01-19

1954-01-19 Application granted granted Critical

1954-01-19 Publication of CA499356A publication Critical patent/CA499356A/en

Status Expired legal-status Critical Current

Links

CA499356A Telephone systems Expired CA499356A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA499356T

Publications (1)

Publication Number	Publication Date
CA499356A true CA499356A (en)	1954-01-19

Family

ID=35644799

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA499356A Expired CA499356A (en)			Telephone systems

Country Status (1)

Country	Link
CA (1)	CA499356A (en)

0
- CA CA499356A patent/CA499356A/en not_active Expired

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