CA616403A - Crossbar relay private branch exchange telephone system - Google Patents

Crossbar relay private branch exchange telephone system

Info

Publication number
CA616403A
CA616403A CA616403DA CA616403A CA 616403 A CA616403 A CA 616403A CA 616403D A CA616403D A CA 616403DA CA 616403 A CA616403 A CA 616403A
Authority
CA
Canada
Prior art keywords
crossbar
telephone system
private branch
branch exchange
exchange telephone
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
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 CA616403A publication Critical patent/CA616403A/en
Expired legal-status Critical Current

Links

CA616403D Crossbar relay private branch exchange telephone system Expired CA616403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA616403T

Publications (1)

Publication Number Publication Date
CA616403A true CA616403A (en) 1961-03-14

Family

ID=35858704

Family Applications (1)

Application Number Title Priority Date Filing Date
CA616403D Expired CA616403A (en) Crossbar relay private branch exchange telephone system

Country Status (1)

Country Link
CA (1) CA616403A (en)

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