GB412591A - Improvements in automatic telephone systems - Google Patents

Improvements in automatic telephone systems

Info

Publication number
GB412591A
GB412591A GB36811/32A GB3681132A GB412591A GB 412591 A GB412591 A GB 412591A GB 36811/32 A GB36811/32 A GB 36811/32A GB 3681132 A GB3681132 A GB 3681132A GB 412591 A GB412591 A GB 412591A
Authority
GB
United Kingdom
Prior art keywords
digit
sequence switch
switch
selector
group
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
GB36811/32A
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 GB412591A publication Critical patent/GB412591A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
GB36811/32A 1931-12-29 1932-12-29 Improvements in automatic telephone systems Expired GB412591A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE412591X 1931-12-29

Publications (1)

Publication Number Publication Date
GB412591A true GB412591A (en) 1934-06-29

Family

ID=20309573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36811/32A Expired GB412591A (en) 1931-12-29 1932-12-29 Improvements in automatic telephone systems

Country Status (2)

Country Link
FR (1) FR748212A (enrdf_load_stackoverflow)
GB (1) GB412591A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR748212A (enrdf_load_stackoverflow) 1933-06-29

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