FR618360A - Improvements to automatic telephone systems - Google Patents

Improvements to automatic telephone systems

Info

Publication number
FR618360A
FR618360A FR618360DA FR618360A FR 618360 A FR618360 A FR 618360A FR 618360D A FR618360D A FR 618360DA FR 618360 A FR618360 A FR 618360A
Authority
FR
France
Prior art keywords
telephone systems
automatic telephone
automatic
systems
telephone
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 FR618360A publication Critical patent/FR618360A/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)
  • Interface Circuits In Exchanges (AREA)
FR618360D 1925-05-04 1926-06-18 Improvements to automatic telephone systems Expired FR618360A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1157725A GB256318A (en) 1925-05-04 1925-05-04 Improvements in automatic and semi-automatic telephone systems

Publications (1)

Publication Number Publication Date
FR618360A true FR618360A (en) 1927-03-08

Family

ID=9988791

Family Applications (1)

Application Number Title Priority Date Filing Date
FR618360D Expired FR618360A (en) 1925-05-04 1926-06-18 Improvements to automatic telephone systems

Country Status (2)

Country Link
FR (1) FR618360A (en)
GB (1) GB256318A (en)

Also Published As

Publication number Publication date
GB256318A (en) 1926-08-04

Similar Documents

Publication Publication Date Title
FR623645A (en) Improvements to telephone systems
FR618360A (en) Improvements to automatic telephone systems
FR620971A (en) Improvements to automatic telephone systems
FR618081A (en) Improvements to automatic telephone systems
FR683358A (en) Improvements to automatic telephone systems
FR621050A (en) Improvements to telephone systems
FR622358A (en) Improvements to telephone systems
FR620351A (en) Improvements to automatic telephone systems
FR618346A (en) Improvements relating to telephone systems
FR614279A (en) Improvements to automatic or semi-automatic telephone systems
FR590175A (en) Improvements to automatic telephone systems
FR609224A (en) Improvements to telephone systems
FR619924A (en) Improvements to telephone systems
FR609976A (en) Improvements to telephone systems
FR610097A (en) Improvements to telephone systems
FR614477A (en) Improvements to telephone systems
FR615460A (en) Improvements to telephone systems
FR616047A (en) Improvements to telephone systems
FR608862A (en) Improvements to telephone systems
FR620588A (en) Improvements to telephone systems
FR620741A (en) Improvements to telephone systems
FR620949A (en) Improvements to telephone systems
FR622351A (en) Improvements to telephone systems
FR623537A (en) Improvements to telephone systems
FR608242A (en) Improvements to telephone systems