FR908687A - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR908687A
FR908687A FR908687DA FR908687A FR 908687 A FR908687 A FR 908687A FR 908687D A FR908687D A FR 908687DA FR 908687 A FR908687 A FR 908687A
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)
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 FR908687A publication Critical patent/FR908687A/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)
FR908687D 1942-02-18 1942-02-18 Improvements to telephone systems Expired FR908687A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR908687T 1942-02-18

Publications (1)

Publication Number Publication Date
FR908687A true FR908687A (en) 1946-04-16

Family

ID=9407332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR908687D Expired FR908687A (en) 1942-02-18 1942-02-18 Improvements to telephone systems

Country Status (1)

Country Link
FR (1) FR908687A (en)

Similar Documents

Publication Publication Date Title
FR928707A (en) Improvements to antenna systems
FR931310A (en) Improvements to telecommunication systems
FR927543A (en) Improvements to powerline carrier systems
FR929427A (en) Improvements to equisignal radiobeacon systems
FR886632A (en) Improvements to aeromotors
FR928730A (en) Telephone systems
FR988008A (en) Improvements to facsimile transmission systems
FR945114A (en) Improvements to balanced amplifier systems
FR926641A (en) Improvements to telecommunication devices and systems
FR888166A (en) Improvements to scrapers-scrapers
FR908687A (en) Improvements to telephone systems
FR908690A (en) Improvements to telephone systems
FR908704A (en) Improvements to telephone systems
FR908693A (en) Improvements to telephone systems
FR908698A (en) Improvements to telephone systems
FR976080A (en) Improvements to telephone systems
FR976979A (en) Improvements to telephone systems
FR974611A (en) Improvements to mobile systems
FR908695A (en) Improvements to automatic telephone systems
FR908696A (en) Improvements to automatic telephone systems
FR975094A (en) Improvements to pumps
FR887890A (en) Improvements to pumps
FR884635A (en) Skimmer refinements
FR890535A (en) Refinements to barbins
FR933962A (en) Improvements to telegraph systems