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H03F1/50
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H
ELECTRICITY
H03
Electronic circuits
H03F
AMPLIFIERS
H03F1/00
Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
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H03F1/50
with tubes only
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Patents Grants
last 30 patents
Information
Patent Grant
Wide band amplifiers
Patent number
4,337,439
Issue date
Jun 29, 1982
The Marconi Company Limited
Boleslaw M. Sosin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3591729
Patent number
3,591,729
Issue date
Jul 6, 1971
G11 - INFORMATION STORAGE
Information
Patent Grant
3541467
Patent number
3,541,467
Issue date
Nov 17, 1970
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
3531600
Patent number
3,531,600
Issue date
Sep 29, 1970
G11 - INFORMATION STORAGE
Information
Patent Grant
3505603
Patent number
3,505,603
Issue date
Apr 7, 1970
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3487165
Patent number
3,487,165
Issue date
Dec 30, 1969
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
3472954
Patent number
3,472,954
Issue date
Oct 14, 1969
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
3403351
Patent number
3,403,351
Issue date
Sep 24, 1968
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3384810
Patent number
3,384,810
Issue date
May 21, 1968
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3334192
Patent number
3,334,192
Issue date
Aug 1, 1967
G11 - INFORMATION STORAGE
Information
Patent Grant
3281702
Patent number
3,281,702
Issue date
Oct 25, 1966
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3259850
Patent number
3,259,850
Issue date
Jul 5, 1966
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3258712
Patent number
3,258,712
Issue date
Jun 28, 1966
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3219917
Patent number
3,219,917
Issue date
Nov 23, 1965
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3196365
Patent number
3,196,365
Issue date
Jul 20, 1965
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3124763
Patent number
3,124,763
Issue date
Mar 10, 1964
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
3001147
Patent number
3,001,147
Issue date
Sep 19, 1961
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
2989581
Patent number
2,989,581
Issue date
Jun 20, 1961
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
2988713
Patent number
2,988,713
Issue date
Jun 13, 1961
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
2976493
Patent number
2,976,493
Issue date
Mar 21, 1961
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
2935695
Patent number
2,935,695
Issue date
May 3, 1960
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
2935696
Patent number
2,935,696
Issue date
May 3, 1960
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
2934709
Patent number
2,934,709
Issue date
Apr 26, 1960
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
2926309
Patent number
2,926,309
Issue date
Feb 23, 1960
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
2924781
Patent number
2,924,781
Issue date
Feb 9, 1960
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
2924779
Patent number
2,924,779
Issue date
Feb 9, 1960
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
2913539
Patent number
2,913,539
Issue date
Nov 17, 1959
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
2901600
Patent number
2,901,600
Issue date
Aug 25, 1959
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
2901560
Patent number
2,901,560
Issue date
Aug 25, 1959
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
2899508
Patent number
2,899,508
Issue date
Aug 11, 1959
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents