FR968768A - Dispositifs de couplage pour circuit à quatre fils - Google Patents

Dispositifs de couplage pour circuit à quatre fils

Info

Publication number
FR968768A
FR968768A FR968768DA FR968768A FR 968768 A FR968768 A FR 968768A FR 968768D A FR968768D A FR 968768DA FR 968768 A FR968768 A FR 968768A
Authority
FR
France
Prior art keywords
coupling devices
wire circuit
wire
circuit
coupling
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
English (en)
Inventor
Frank Fairley
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR968768A publication Critical patent/FR968768A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
FR968768D 1947-07-07 1948-07-06 Dispositifs de couplage pour circuit à quatre fils Expired FR968768A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB968768X 1947-07-07

Publications (1)

Publication Number Publication Date
FR968768A true FR968768A (fr) 1950-12-05

Family

ID=10805405

Family Applications (1)

Application Number Title Priority Date Filing Date
FR968768D Expired FR968768A (fr) 1947-07-07 1948-07-06 Dispositifs de couplage pour circuit à quatre fils

Country Status (1)

Country Link
FR (1) FR968768A (fr)

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