FR659757A - Improvements to automatic or semi-automatic telephone systems - Google Patents

Improvements to automatic or semi-automatic telephone systems

Info

Publication number
FR659757A
FR659757A FR659757DA FR659757A FR 659757 A FR659757 A FR 659757A FR 659757D A FR659757D A FR 659757DA FR 659757 A FR659757 A FR 659757A
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 FR659757A publication Critical patent/FR659757A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Structure Of Telephone Exchanges (AREA)
FR659757D 1928-06-27 1928-08-29 Improvements to automatic or semi-automatic telephone systems Expired FR659757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1862628A GB319713A (en) 1928-06-27 1928-06-27 Improvements in or relating to automatic or semi-automatic telephone systems

Publications (1)

Publication Number Publication Date
FR659757A true FR659757A (en) 1929-07-04

Family

ID=10115680

Family Applications (1)

Application Number Title Priority Date Filing Date
FR659757D Expired FR659757A (en) 1928-06-27 1928-08-29 Improvements to automatic or semi-automatic telephone systems

Country Status (2)

Country Link
FR (1) FR659757A (en)
GB (1) GB319713A (en)

Also Published As

Publication number Publication date
GB319713A (en) 1929-09-27

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