CA594759A - Automatic telephone exchange systems - Google Patents

Automatic telephone exchange systems

Info

Publication number: CA594759A
Authority: CA; Canada
Prior art keywords: telephone exchange; automatic telephone; exchange systems; systems; automatic
Prior art date: 1960-03-22
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

CA594759A

Inventor

S. Hopkins Ronald

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

1960-03-22

1960-03-22 Application granted granted Critical

1960-03-22 Publication of CA594759A publication Critical patent/CA594759A/en

Status Expired legal-status Critical Current

Links

CA594759A Automatic telephone exchange systems Expired CA594759A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA594759T

Publications (1)

Publication Number	Publication Date
CA594759A true CA594759A (en)	1960-03-22

Family

ID=35808286

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA594759A Expired CA594759A (en)			Automatic telephone exchange systems

Country Status (1)

Country	Link
CA (1)	CA594759A (en)

0
- CA CA594759A patent/CA594759A/en not_active Expired

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