FR978603A - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR978603A
FR978603A FR978603DA FR978603A FR 978603 A FR978603 A FR 978603A FR 978603D A FR978603D A FR 978603DA FR 978603 A FR978603 A FR 978603A
Authority
FR
France
Prior art keywords
telephone systems
telephone
systems
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)
Inventor
Fernand-Pierre Gohorel
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 FR978603A publication Critical patent/FR978603A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR978603D 1948-11-23 1948-11-23 Improvements to telephone systems Expired FR978603A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR978603T 1948-11-23

Publications (1)

Publication Number Publication Date
FR978603A true FR978603A (en) 1951-04-16

Family

ID=9520630

Family Applications (1)

Application Number Title Priority Date Filing Date
FR978603D Expired FR978603A (en) 1948-11-23 1948-11-23 Improvements to telephone systems

Country Status (1)

Country Link
FR (1) FR978603A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937651C (en) * 1952-08-31 1956-01-12 Siemens Ag Telecommunication, in particular telephone system with dialer operation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937651C (en) * 1952-08-31 1956-01-12 Siemens Ag Telecommunication, in particular telephone system with dialer operation

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