FR583629A - Improvements to telephone systems for automatic central offices - Google Patents

Improvements to telephone systems for automatic central offices

Info

Publication number
FR583629A
FR583629A FR583629DA FR583629A FR 583629 A FR583629 A FR 583629A FR 583629D A FR583629D A FR 583629DA FR 583629 A FR583629 A FR 583629A
Authority
FR
France
Prior art keywords
telephone systems
central offices
automatic central
automatic
offices
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 FR583629A publication Critical patent/FR583629A/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)
  • Motor And Converter Starters (AREA)
  • Relay Circuits (AREA)
FR583629D 1924-01-24 1924-07-09 Improvements to telephone systems for automatic central offices Expired FR583629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB194524A GB224767A (en) 1924-01-24 1924-01-24 Improvements in machine switching telephone systems

Publications (1)

Publication Number Publication Date
FR583629A true FR583629A (en) 1925-01-19

Family

ID=9730789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR583629D Expired FR583629A (en) 1924-01-24 1924-07-09 Improvements to telephone systems for automatic central offices

Country Status (2)

Country Link
FR (1) FR583629A (en)
GB (1) GB224767A (en)

Also Published As

Publication number Publication date
GB224767A (en) 1924-11-20

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