CH240076A - Telephone switchboard. - Google Patents

Telephone switchboard.

Info

Publication number
CH240076A
CH240076A CH240076DA CH240076A CH 240076 A CH240076 A CH 240076A CH 240076D A CH240076D A CH 240076DA CH 240076 A CH240076 A CH 240076A
Authority
CH
Switzerland
Prior art keywords
telephone switchboard
switchboard
telephone
Prior art date
Application number
Other languages
German (de)
Inventor
Bell Telephone Manufac Anonyme
Original Assignee
Bell Telephone Mfg
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 Bell Telephone Mfg filed Critical Bell Telephone Mfg
Publication of CH240076A publication Critical patent/CH240076A/en

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)
CH240076D 1935-06-21 1936-06-22 Telephone switchboard. CH240076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27675A US2136620A (en) 1935-06-21 1935-06-21 Telephone system

Publications (1)

Publication Number Publication Date
CH240076A true CH240076A (en) 1945-11-30

Family

ID=21839142

Family Applications (1)

Application Number Title Priority Date Filing Date
CH240076D CH240076A (en) 1935-06-21 1936-06-22 Telephone switchboard.

Country Status (2)

Country Link
US (1) US2136620A (en)
CH (1) CH240076A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588052A (en) * 1943-05-05 1952-03-04 American Telephone & Telegraph Control circuit for telephone systems
US3048662A (en) * 1957-05-17 1962-08-07 Itt Pabx switching system

Also Published As

Publication number Publication date
US2136620A (en) 1938-11-15

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