FR714251A - - Google Patents

Info

Publication number
FR714251A
FR714251A FR714251DA FR714251A FR 714251 A FR714251 A FR 714251A FR 714251D A FR714251D A FR 714251DA FR 714251 A FR714251 A FR 714251A
Authority
FR
France
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)
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.)
Publication date
Application granted granted Critical
Publication of FR714251A publication Critical patent/FR714251A/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/20Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR714251D 1930-07-03 Expired FR714251A (US06486227-20021126-C00005.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR371664X 1930-07-03

Publications (1)

Publication Number Publication Date
FR714251A true FR714251A (US06486227-20021126-C00005.png) 1931-11-19

Family

ID=8894717

Family Applications (1)

Application Number Title Priority Date Filing Date
FR714251D Expired FR714251A (US06486227-20021126-C00005.png) 1930-07-03

Country Status (3)

Country Link
BE (1) BE380454A (US06486227-20021126-C00005.png)
FR (1) FR714251A (US06486227-20021126-C00005.png)
GB (1) GB371664A (US06486227-20021126-C00005.png)

Also Published As

Publication number Publication date
GB371664A (en) 1932-04-28
BE380454A (US06486227-20021126-C00005.png)

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