FR585842A - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR585842A
FR585842A FR585842DA FR585842A FR 585842 A FR585842 A FR 585842A FR 585842D A FR585842D A FR 585842DA FR 585842 A FR585842 A FR 585842A
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 FR585842A publication Critical patent/FR585842A/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)
  • Structure Of Telephone Exchanges (AREA)
FR585842D 1924-02-12 1924-08-05 Improvements to telephone systems Expired FR585842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1653890X 1924-02-12

Publications (1)

Publication Number Publication Date
FR585842A true FR585842A (en) 1925-03-07

Family

ID=10887726

Family Applications (1)

Application Number Title Priority Date Filing Date
FR585842D Expired FR585842A (en) 1924-02-12 1924-08-05 Improvements to telephone systems

Country Status (2)

Country Link
US (1) US1653890A (en)
FR (1) FR585842A (en)

Also Published As

Publication number Publication date
US1653890A (en) 1927-12-27

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