CA606312A - Telephone system crossbar relay private branch exchange - Google Patents

Telephone system crossbar relay private branch exchange

Info

Publication number
CA606312A
CA606312A CA606312DA CA606312A CA 606312 A CA606312 A CA 606312A CA 606312D A CA606312D A CA 606312DA CA 606312 A CA606312 A CA 606312A
Authority
CA
Canada
Prior art keywords
telephone system
private branch
branch exchange
system crossbar
relay private
Prior art date
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
Inventor
P. Boswau Hans
V. Oldham Robert
G. Evers 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.)
LEICH ELECTRIC Co
Original Assignee
LEICH ELECTRIC Co
Publication date
Application granted granted Critical
Publication of CA606312A publication Critical patent/CA606312A/en
Expired legal-status Critical Current

Links

CA606312D Telephone system crossbar relay private branch exchange Expired CA606312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA606312T

Publications (1)

Publication Number Publication Date
CA606312A true CA606312A (en) 1960-10-04

Family

ID=35827794

Family Applications (1)

Application Number Title Priority Date Filing Date
CA606312D Expired CA606312A (en) Telephone system crossbar relay private branch exchange

Country Status (1)

Country Link
CA (1) CA606312A (en)

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