GB190916642A - Improvements in Telephone Switchboards. - Google Patents

Improvements in Telephone Switchboards.

Info

Publication number
GB190916642A
GB190916642A GB190916642DA GB190916642A GB 190916642 A GB190916642 A GB 190916642A GB 190916642D A GB190916642D A GB 190916642DA GB 190916642 A GB190916642 A GB 190916642A
Authority
GB
United Kingdom
Prior art keywords
bars
connect
plungers
springs
switchboard
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
Other languages
English (en)
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.)
British Insulated and Helsby Cables Ltd
Original Assignee
British Insulated and Helsby Cables Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Insulated and Helsby Cables Ltd filed Critical British Insulated and Helsby Cables Ltd
Application granted granted Critical
Publication of GB190916642A publication Critical patent/GB190916642A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/08—Manual exchanges using connecting means other than cords

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Structure Of Telephone Exchanges (AREA)
GB190916642D 1909-07-16 1909-07-16 Improvements in Telephone Switchboards. Expired GB190916642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190916642T 1909-07-16

Publications (1)

Publication Number Publication Date
GB190916642A true GB190916642A (en) 1910-03-24

Family

ID=32557049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190916642D Expired GB190916642A (en) 1909-07-16 1909-07-16 Improvements in Telephone Switchboards.

Country Status (2)

Country Link
DE (1) DE245318C (de)
GB (1) GB190916642A (de)

Also Published As

Publication number Publication date
DE245318C (de)

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