FR634383A - Improvements to telephone systems - Google Patents

Improvements to telephone systems

Info

Publication number
FR634383A
FR634383A FR634383DA FR634383A FR 634383 A FR634383 A FR 634383A FR 634383D A FR634383D A FR 634383DA FR 634383 A FR634383 A FR 634383A
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 FR634383A publication Critical patent/FR634383A/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)
  • Interface Circuits In Exchanges (AREA)
FR634383D 1926-05-17 1927-05-14 Improvements to telephone systems Expired FR634383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1266226A GB276067A (en) 1926-05-17 1926-05-17 Improvements in or relating to telephone systems

Publications (1)

Publication Number Publication Date
FR634383A true FR634383A (en) 1928-02-16

Family

ID=10008818

Family Applications (1)

Application Number Title Priority Date Filing Date
FR634383D Expired FR634383A (en) 1926-05-17 1927-05-14 Improvements to telephone systems

Country Status (2)

Country Link
FR (1) FR634383A (en)
GB (1) GB276067A (en)

Also Published As

Publication number Publication date
GB276067A (en) 1927-08-17

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