FR815031A - Improvements to telephone or similar systems - Google Patents

Improvements to telephone or similar systems

Info

Publication number
FR815031A
FR815031A FR815031DA FR815031A FR 815031 A FR815031 A FR 815031A FR 815031D A FR815031D A FR 815031DA FR 815031 A FR815031 A FR 815031A
Authority
FR
France
Prior art keywords
telephone
similar systems
systems
similar
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.)
Associated Electric Laboratories Inc
Original Assignee
Associated Electric Laboratories Inc
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 Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Application granted granted Critical
Publication of FR815031A publication Critical patent/FR815031A/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)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
FR815031D 1935-12-16 1936-12-14 Improvements to telephone or similar systems Expired FR815031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3493235A GB467442A (en) 1935-12-16 1935-12-16 Improvements in telephone or like systems

Publications (1)

Publication Number Publication Date
FR815031A true FR815031A (en) 1937-07-05

Family

ID=10371708

Family Applications (1)

Application Number Title Priority Date Filing Date
FR815031D Expired FR815031A (en) 1935-12-16 1936-12-14 Improvements to telephone or similar systems

Country Status (2)

Country Link
FR (1) FR815031A (en)
GB (1) GB467442A (en)

Also Published As

Publication number Publication date
GB467442A (en) 1937-06-16

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