FR618804A - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
FR618804A
FR618804A FR618804DA FR618804A FR 618804 A FR618804 A FR 618804A FR 618804D A FR618804D A FR 618804DA FR 618804 A FR618804 A FR 618804A
Authority
FR
France
Prior art keywords
improvements relating
telephone systems
telephone
relating
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 FR618804A publication Critical patent/FR618804A/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)
  • Monitoring And Testing Of Exchanges (AREA)
FR618804D 1925-06-15 1926-07-01 Improvements relating to telephone systems Expired FR618804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1552025A GB259642A (en) 1925-06-15 1925-06-15 Improvements in or relating to telephone systems

Publications (1)

Publication Number Publication Date
FR618804A true FR618804A (en) 1927-03-22

Family

ID=10060571

Family Applications (1)

Application Number Title Priority Date Filing Date
FR618804D Expired FR618804A (en) 1925-06-15 1926-07-01 Improvements relating to telephone systems

Country Status (2)

Country Link
FR (1) FR618804A (en)
GB (1) GB259642A (en)

Also Published As

Publication number Publication date
GB259642A (en) 1926-10-15

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