BE440390A - - Google Patents

Info

Publication number
BE440390A
BE440390A BE440390DA BE440390A BE 440390 A BE440390 A BE 440390A BE 440390D A BE440390D A BE 440390DA BE 440390 A BE440390 A BE 440390A
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 BE440390A publication Critical patent/BE440390A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/66—Amplifiers simultaneously generating oscillations of one frequency and amplifying signals of another frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/06—Control of transmission; Equalising by the transmitted signal
BE440390D 1939-06-21 BE440390A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US280291A US2231527A (en) 1939-06-21 1939-06-21 Transmission regulation

Publications (1)

Publication Number Publication Date
BE440390A true BE440390A (xx)

Family

ID=23072454

Family Applications (1)

Application Number Title Priority Date Filing Date
BE440390D BE440390A (xx) 1939-06-21

Country Status (4)

Country Link
US (1) US2231527A (xx)
BE (1) BE440390A (xx)
FR (1) FR867449A (xx)
GB (1) GB537893A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034041A (en) * 1955-08-17 1962-05-08 Schlumberger Well Surv Corp Feedback amplifying systems
US3082381A (en) * 1959-05-27 1963-03-19 Goodyear Aircraft Corp Automatic gain control circuit
CN106190824A (zh) * 2016-08-11 2016-12-07 四川耀康生物科技有限公司 一种胶原蛋白提取用恒温酶解反应罐

Also Published As

Publication number Publication date
US2231527A (en) 1941-02-11
GB537893A (en) 1941-07-10
FR867449A (fr) 1941-10-27

Similar Documents

Publication Publication Date Title
BE433994A (xx)
BE432228A (xx)
BE432222A (xx)
BE431181A (xx)
BE428333A (xx)
BE421934A (xx)
BE413600A (xx)
BE403779A (xx)
BE432683A (xx)
BE432823A (xx)
BE432902A (xx)
BE432967A (xx)
BE432980A (xx)
BE433383A (xx)
BE433398A (xx)
BE433403A (xx)
BE433599A (xx)
BE433615A (xx)
BE440390A (xx)
BE433626A (xx)
BE439707A (xx)
BE433708A (xx)
BE433833A (xx)
BE433845A (xx)
BE433856A (xx)