GB653002A - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
GB653002A
GB653002A GB5088/48A GB508848A GB653002A GB 653002 A GB653002 A GB 653002A GB 5088/48 A GB5088/48 A GB 5088/48A GB 508848 A GB508848 A GB 508848A GB 653002 A GB653002 A GB 653002A
Authority
GB
United Kingdom
Prior art keywords
sender
incoming
trunk
outgoing
repeater
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
GB5088/48A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB653002A publication Critical patent/GB653002A/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)
  • Interface Circuits In Exchanges (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Adhesives Or Adhesive Processes (AREA)
GB5088/48A 1939-09-15 1948-02-20 Improvements in or relating to telephone systems Expired GB653002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US295012A US2293191A (en) 1939-09-15 1939-09-15 Telephone system

Publications (1)

Publication Number Publication Date
GB653002A true GB653002A (en) 1951-05-09

Family

ID=23135853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5088/48A Expired GB653002A (en) 1939-09-15 1948-02-20 Improvements in or relating to telephone systems

Country Status (4)

Country Link
US (1) US2293191A (de)
FR (1) FR962198A (de)
GB (1) GB653002A (de)
NL (2) NL137222B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2465539A (en) * 1946-12-20 1949-03-29 Bell Telephone Labor Inc Call failure signaling arrangement

Also Published As

Publication number Publication date
FR962198A (de) 1950-06-02
NL70954C (de)
US2293191A (en) 1942-08-18
NL137222B (de)

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