BE454425A - - Google Patents

Info

Publication number
BE454425A
BE454425A BE454425DA BE454425A BE 454425 A BE454425 A BE 454425A BE 454425D A BE454425D A BE 454425DA BE 454425 A BE454425 A BE 454425A
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.)
Publication of BE454425A publication Critical patent/BE454425A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/06—Manually-operated control in untuned amplifiers having discharge tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
BE454425D 1943-02-18 BE454425A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL247563X 1943-02-18

Publications (1)

Publication Number Publication Date
BE454425A true BE454425A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=19780914

Family Applications (1)

Application Number Title Priority Date Filing Date
BE454425D BE454425A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1943-02-18

Country Status (4)

Country Link
BE (1) BE454425A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH247563A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR904080A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL58180C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
FR904080A (fr) 1945-10-25
CH247563A (de) 1947-03-15
NL58180C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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