FR1012472A - Improvements to automatic telephone systems - Google Patents

Improvements to automatic telephone systems

Info

Publication number
FR1012472A
FR1012472A FR1012472DA FR1012472A FR 1012472 A FR1012472 A FR 1012472A FR 1012472D A FR1012472D A FR 1012472DA FR 1012472 A FR1012472 A FR 1012472A
Authority
FR
France
Prior art keywords
telephone systems
automatic telephone
automatic
systems
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Application granted granted Critical
Publication of FR1012472A publication Critical patent/FR1012472A/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)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
FR1012472D 1949-10-03 1949-10-03 Improvements to automatic telephone systems Expired FR1012472A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR868924X 1949-10-03

Publications (1)

Publication Number Publication Date
FR1012472A true FR1012472A (en) 1952-07-10

Family

ID=9346277

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1012472D Expired FR1012472A (en) 1949-10-03 1949-10-03 Improvements to automatic telephone systems

Country Status (6)

Country Link
US (1) US2660620A (en)
BE (1) BE498138A (en)
CH (1) CH297626A (en)
DE (1) DE868924C (en)
FR (1) FR1012472A (en)
GB (1) GB748752A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567178A (en) * 1952-07-01

Also Published As

Publication number Publication date
DE868924C (en) 1953-03-02
BE498138A (en)
CH297626A (en) 1954-03-31
GB748752A (en) 1956-05-09
US2660620A (en) 1953-11-24

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