GB280576A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
GB280576A
GB280576A GB30234/27A GB3023427A GB280576A GB 280576 A GB280576 A GB 280576A GB 30234/27 A GB30234/27 A GB 30234/27A GB 3023427 A GB3023427 A GB 3023427A GB 280576 A GB280576 A GB 280576A
Authority
GB
United Kingdom
Prior art keywords
relay
register
digit
over
numerical
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
GB30234/27A
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.)
Associated Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
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 Associated Telephone and Telegraph Co filed Critical Associated Telephone and Telegraph Co
Publication of GB280576A publication Critical patent/GB280576A/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)
  • Exchange Systems With Centralized Control (AREA)
GB30234/27A 1926-11-10 1927-11-10 Improvements in or relating to telephone systems Expired GB280576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US280576XA 1926-11-10 1926-11-10

Publications (1)

Publication Number Publication Date
GB280576A true GB280576A (en) 1929-02-11

Family

ID=21841331

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30234/27A Expired GB280576A (en) 1926-11-10 1927-11-10 Improvements in or relating to telephone systems

Country Status (2)

Country Link
FR (1) FR643113A (enrdf_load_stackoverflow)
GB (1) GB280576A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR643113A (enrdf_load_stackoverflow) 1928-09-10

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