FR863476A - Multiple phone system - Google Patents

Multiple phone system

Info

Publication number
FR863476A
FR863476A FR863476DA FR863476A FR 863476 A FR863476 A FR 863476A FR 863476D A FR863476D A FR 863476DA FR 863476 A FR863476 A FR 863476A
Authority
FR
France
Prior art keywords
phone system
multiple phone
phone
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR863476A publication Critical patent/FR863476A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/08—Arrangements for interconnection between switching centres for phantom working

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR863476D 1939-02-20 1940-02-19 Multiple phone system Expired FR863476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE863476X 1939-02-20

Publications (1)

Publication Number Publication Date
FR863476A true FR863476A (en) 1941-04-02

Family

ID=6801468

Family Applications (1)

Application Number Title Priority Date Filing Date
FR863476D Expired FR863476A (en) 1939-02-20 1940-02-19 Multiple phone system

Country Status (1)

Country Link
FR (1) FR863476A (en)

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