CA409235A - Telephone switching apparatus - Google Patents

Telephone switching apparatus

Info

Publication number
CA409235A
CA409235A CA409235A CA409235DA CA409235A CA 409235 A CA409235 A CA 409235A CA 409235 A CA409235 A CA 409235A CA 409235D A CA409235D A CA 409235DA CA 409235 A CA409235 A CA 409235A
Authority
CA
Canada
Prior art keywords
switching apparatus
telephone switching
telephone
switching
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
CA409235A
Other languages
French (fr)
Inventor
Ellis Ostline John
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA409235A publication Critical patent/CA409235A/en
Expired legal-status Critical Current

Links

CA409235A Telephone switching apparatus Expired CA409235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA409235T

Publications (1)

Publication Number Publication Date
CA409235A true CA409235A (en) 1942-12-08

Family

ID=35420536

Family Applications (1)

Application Number Title Priority Date Filing Date
CA409235A Expired CA409235A (en) Telephone switching apparatus

Country Status (1)

Country Link
CA (1) CA409235A (en)

Similar Documents

Publication Publication Date Title
CA409235A (en) Telephone switching apparatus
CA404209A (en) Telephone switch
CA403723A (en) Electrical switching apparatus
CA403768A (en) Electrical switching apparatus
CA408085A (en) Electric switching apparatus
CA409003A (en) Electric switching apparatus
CA411945A (en) Telephone switching apparatus
CA411946A (en) Telephone switching apparatus
CA413013A (en) Telephone switching apparatus
CA413014A (en) Telephone switching apparatus
CA404580A (en) Telephone handset
CA403784A (en) Switchboard
CA409236A (en) Telephone system
CA403996A (en) Telephone system
CA403999A (en) Telephone system
CA405029A (en) Telephone system
CA405043A (en) Telephone system
CA405324A (en) Telephone system
CA405758A (en) Telephone system
CA405759A (en) Telephone system
CA405760A (en) Telephone system
CA406280A (en) Telephone system
CA406560A (en) Telephone system
CA406561A (en) Telephone system
CA403973A (en) Telephone system