BE386269A - - Google Patents

Info

Publication number
BE386269A
BE386269A BE386269DA BE386269A BE 386269 A BE386269 A BE 386269A BE 386269D A BE386269D A BE 386269DA BE 386269 A BE386269 A BE 386269A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE386269A publication Critical patent/BE386269A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Springs (AREA)
BE386269D 1931-02-07 1932-02-06 BE386269A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3949/31A GB372400A (en) 1931-02-07 1931-02-07 Improvements relating to telephone instrument circuits
GB3238/34A GB425566A (en) 1931-02-07 1934-01-31 Improvements in or relating to telephone instrument circuits

Publications (1)

Publication Number Publication Date
BE386269A true BE386269A (enrdf_load_stackoverflow) 1932-03-31

Family

ID=32109232

Family Applications (1)

Application Number Title Priority Date Filing Date
BE386269D BE386269A (enrdf_load_stackoverflow) 1931-02-07 1932-02-06

Country Status (5)

Country Link
US (2) US1919314A (enrdf_load_stackoverflow)
BE (1) BE386269A (enrdf_load_stackoverflow)
FR (1) FR732067A (enrdf_load_stackoverflow)
GB (3) GB372400A (enrdf_load_stackoverflow)
NL (1) NL35830C (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417067A (en) * 1947-03-11 Telephone substation circuit
US2548723A (en) * 1945-07-13 1951-04-10 Kellogg Switchboard & Supply Telephone set hook-switch apparatus
US2912512A (en) * 1956-06-19 1959-11-10 Gen Telephone Lab Inc Anti-sidetone and line balancing telephone circuit

Also Published As

Publication number Publication date
GB407808A (en) 1934-03-29
GB372400A (en) 1932-05-09
NL35830C (enrdf_load_stackoverflow) 1935-07-15
GB425566A (en) 1935-03-18
US1919314A (en) 1933-07-25
FR732067A (fr) 1932-09-13
US2099381A (en) 1937-11-16

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