FR585259A - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR585259A
FR585259A FR585259DA FR585259A FR 585259 A FR585259 A FR 585259A FR 585259D A FR585259D A FR 585259DA FR 585259 A FR585259 A FR 585259A
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
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR585259A publication Critical patent/FR585259A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
FR585259D 1923-08-04 1924-06-30 Improvements to telephone systems Expired FR585259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2003223A GB214529A (en) 1923-08-04 1923-08-04 Improvements in or relating to telephone systems

Publications (1)

Publication Number Publication Date
FR585259A true FR585259A (en) 1925-02-24

Family

ID=10139222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR585259D Expired FR585259A (en) 1923-08-04 1924-06-30 Improvements to telephone systems

Country Status (3)

Country Link
FR (1) FR585259A (en)
GB (1) GB214529A (en)
NL (1) NL16279C (en)

Also Published As

Publication number Publication date
GB214529A (en) 1924-04-24
NL16279C (en)

Similar Documents

Publication Publication Date Title
FR561507A (en) Improvements to telegraph systems
FR623645A (en) Improvements to telephone systems
FR630110A (en) Improvements to telephone systems
FR631166A (en) Improvements to telephone systems
FR571485A (en) Improvements to telephone systems
FR585259A (en) Improvements to telephone systems
FR590656A (en) Improvements to telephone systems
FR562274A (en) Improvements to telephone systems
FR590175A (en) Improvements to automatic telephone systems
FR621050A (en) Improvements to telephone systems
FR622358A (en) Improvements to telephone systems
FR618346A (en) Improvements relating to telephone systems
FR569300A (en) Improvements to telegraph systems
FR553938A (en) Improvements to telegraph systems
FR551210A (en) Improvements to telephone systems
FR599913A (en) Improvements to telephone systems
FR591871A (en) Improvements to telephone systems
FR585842A (en) Improvements to telephone systems
FR569938A (en) Improvements to radiocommunications systems
FR563498A (en) Improvements to electrical protective systems
FR608242A (en) Improvements to telephone systems
FR623537A (en) Improvements to telephone systems
FR620588A (en) Improvements to telephone systems
FR620741A (en) Improvements to telephone systems
FR616047A (en) Improvements to telephone systems