CA20031A - Telephone switch board - Google Patents

Telephone switch board

Info

Publication number
CA20031A
CA20031A CA000020031A CA20031DA CA20031A CA 20031 A CA20031 A CA 20031A CA 000020031 A CA000020031 A CA 000020031A CA 20031D A CA20031D A CA 20031DA CA 20031 A CA20031 A CA 20031A
Authority
CA
Canada
Prior art keywords
switch board
telephone switch
telephone
board
switch
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
CA000020031A
Other languages
French (fr)
Inventor
Everlyn B. Hamlin
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.)
STANDARD ELECTRICAL WORKS
Original Assignee
STANDARD ELECTRICAL WORKS
Publication date
Application granted granted Critical
Publication of CA20031A publication Critical patent/CA20031A/en
Expired legal-status Critical Current

Links

CA000020031A Telephone switch board Expired CA20031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA20031T

Publications (1)

Publication Number Publication Date
CA20031A true CA20031A (en) 1884-08-18

Family

ID=45136574

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000020031A Expired CA20031A (en) Telephone switch board

Country Status (1)

Country Link
CA (1) CA20031A (en)

Similar Documents

Publication Publication Date Title
CA19335A (en) Switch board
CA22661A (en) Telephone switch board
CA20079A (en) Multiple switch board apparatus
CA20718A (en) Mechanical telephone
CA19330A (en) Telephone
CA18542A (en) Telephone
CA19160A (en) Telephone
CA19234A (en) Switch board for electric circuits
CA18427A (en) Telephonic tansmitter
CA19468A (en) Skirt board
CA20308A (en) Ironing board
CA18532A (en) Ironing board
CA18658A (en) Electrical circuit
CA19581A (en) Telephone receiver
CA19329A (en) Telephone receiver
CA19959A (en) Telephone receiver
CA18457A (en) Telephone receiver
CA20823A (en) Electric switch
CA18897A (en) Extension table
CA20811A (en) Telephone transmitter
CA19591A (en) Telephone transmitter
CA19590A (en) Telephone transmitter
CA19958A (en) Telephone transmitter
CA18498A (en) Telephone transmitter
CA18706A (en) Telephone signalling apparatus