GB779236A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
GB779236A
GB779236A GB3363256A GB3363256A GB779236A GB 779236 A GB779236 A GB 779236A GB 3363256 A GB3363256 A GB 3363256A GB 3363256 A GB3363256 A GB 3363256A GB 779236 A GB779236 A GB 779236A
Authority
GB
United Kingdom
Prior art keywords
relating
telephone systems
april
automatic
telephone
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
GB3363256A
Inventor
James Gordon Pearce
Derek Hurst
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co 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 Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB3363256A priority Critical patent/GB779236A/en
Publication of GB779236A publication Critical patent/GB779236A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Meter Arrangements (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Prepayment Telephone Systems (AREA)

Abstract

779,236. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. April 5, 1955 [April 15, 1954], No. 33632/56. Divided out of 779,235. Drawings to Specification. Class 40 (4). The description is identical with that of the parent Specification but the claims differ. Specification 779,237 is referred to.
GB3363256A 1954-04-15 1954-04-15 Improvements in or relating to telephone systems Expired GB779236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3363256A GB779236A (en) 1954-04-15 1954-04-15 Improvements in or relating to telephone systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3363256A GB779236A (en) 1954-04-15 1954-04-15 Improvements in or relating to telephone systems

Publications (1)

Publication Number Publication Date
GB779236A true GB779236A (en) 1957-07-17

Family

ID=10355423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3363256A Expired GB779236A (en) 1954-04-15 1954-04-15 Improvements in or relating to telephone systems

Country Status (1)

Country Link
GB (1) GB779236A (en)

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