FR916162A - Device for simultaneous transmission of signals over telephone lines - Google Patents

Device for simultaneous transmission of signals over telephone lines

Info

Publication number
FR916162A
FR916162A FR916162DA FR916162A FR 916162 A FR916162 A FR 916162A FR 916162D A FR916162D A FR 916162DA FR 916162 A FR916162 A FR 916162A
Authority
FR
France
Prior art keywords
signals over
telephone lines
simultaneous transmission
over telephone
simultaneous
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.)
BROWN
BBC Brown Boveri AG Germany
Original Assignee
BROWN
Brown Boveri und Cie AG Germany
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 BROWN, Brown Boveri und Cie AG Germany filed Critical BROWN
Application granted granted Critical
Publication of FR916162A publication Critical patent/FR916162A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/42—Circuits for by-passing of ringing signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR916162D 1944-09-13 1945-10-23 Device for simultaneous transmission of signals over telephone lines Expired FR916162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH916162X 1944-09-13

Publications (1)

Publication Number Publication Date
FR916162A true FR916162A (en) 1946-11-28

Family

ID=4547839

Family Applications (1)

Application Number Title Priority Date Filing Date
FR916162D Expired FR916162A (en) 1944-09-13 1945-10-23 Device for simultaneous transmission of signals over telephone lines

Country Status (3)

Country Link
BE (1) BE463852A (en)
CH (1) CH241540A (en)
FR (1) FR916162A (en)

Also Published As

Publication number Publication date
CH241540A (en) 1946-03-15
BE463852A (en)

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