CA232452A - Dispositif de circuits d'installation telephonique - Google Patents

Dispositif de circuits d'installation telephonique

Info

Publication number: CA232452A
Authority: CA; Canada
Prior art keywords: circuit arrangement; telephone installations; installations; telephone; arrangement
Prior art date: 1923-07-03
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

CA232452A

Other languages

English (en)

Inventor

Pettigrew Thomas

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

1923-07-03

1923-07-03 Application granted granted Critical

1923-07-03 Publication of CA232452A publication Critical patent/CA232452A/fr

Status Expired legal-status Critical Current

Links

238000009434 installation Methods 0.000 title 1

CA232452A Dispositif de circuits d'installation telephonique Expired CA232452A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA232452T

Publications (1)

Publication Number	Publication Date
CA232452A true CA232452A (fr)	1923-07-03

Family

ID=35129825

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA232452A Expired CA232452A (fr)			Dispositif de circuits d'installation telephonique

Country Status (1)

Country	Link
CA (1)	CA232452A (fr)

0
- CA CA232452A patent/CA232452A/fr not_active Expired

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