GB552086A - Improvements in or relating to the manual switchboards - Google Patents

Improvements in or relating to the manual switchboards

Info

Publication number
GB552086A
GB552086A GB12151/41A GB1215141A GB552086A GB 552086 A GB552086 A GB 552086A GB 12151/41 A GB12151/41 A GB 12151/41A GB 1215141 A GB1215141 A GB 1215141A GB 552086 A GB552086 A GB 552086A
Authority
GB
United Kingdom
Prior art keywords
plate
indicators
wires
link circuits
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
GB12151/41A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB552086A publication Critical patent/GB552086A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/02—Constructional details

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Structure Of Telephone Exchanges (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
GB12151/41A 1940-07-20 1941-09-19 Improvements in or relating to the manual switchboards Expired GB552086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE552086X 1940-07-20

Publications (1)

Publication Number Publication Date
GB552086A true GB552086A (en) 1943-03-22

Family

ID=20311806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12151/41A Expired GB552086A (en) 1940-07-20 1941-09-19 Improvements in or relating to the manual switchboards

Country Status (3)

Country Link
BE (1) BE442186A (enrdf_load_stackoverflow)
FR (1) FR881912A (enrdf_load_stackoverflow)
GB (1) GB552086A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR881912A (fr) 1943-05-12
BE442186A (enrdf_load_stackoverflow)

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