FR665397A - Improvements to automatic or semi-automatic telephone systems - Google Patents

Improvements to automatic or semi-automatic telephone systems

Info

Publication number
FR665397A
FR665397A FR665397DA FR665397A FR 665397 A FR665397 A FR 665397A FR 665397D A FR665397D A FR 665397DA FR 665397 A FR665397 A FR 665397A
Authority
FR
France
Prior art keywords
automatic
semi
telephone systems
automatic 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 FR665397A publication Critical patent/FR665397A/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)
FR665397D 1928-10-31 1928-12-07 Improvements to automatic or semi-automatic telephone systems Expired FR665397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3171028A GB324675A (en) 1928-10-31 1928-10-31 Improvements in automatic or semi-automatic telephone systems

Publications (1)

Publication Number Publication Date
FR665397A true FR665397A (en) 1929-09-18

Family

ID=10327241

Family Applications (1)

Application Number Title Priority Date Filing Date
FR665397D Expired FR665397A (en) 1928-10-31 1928-12-07 Improvements to automatic or semi-automatic telephone systems

Country Status (2)

Country Link
FR (1) FR665397A (en)
GB (1) GB324675A (en)

Also Published As

Publication number Publication date
GB324675A (en) 1930-01-31

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