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Marshall D. Buck
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Los Angeles, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Dual range horn with acoustic crossover
Patent number
7,392,880
Issue date
Jul 1, 2008
Gibson Guitar Corp.
Marshall D. Buck
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Emulated guitar loudspeaker
Patent number
4,937,874
Issue date
Jun 26, 1990
R. Aspen Pittman
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Multiple sound transducer system utilizing an acoustic filter to re...
Patent number
4,619,342
Issue date
Oct 28, 1986
Cerwin-Vega, Inc.
Marshall D. Buck
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Coaxial loudspeaker system
Patent number
4,283,606
Issue date
Aug 11, 1981
Cerwin Vega, Inc.
Marshall D. Buck
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Dual range horn with acoustic crossover
Publication number
20040005069
Publication date
Jan 8, 2004
Marshall D. Buck
H04 - ELECTRIC COMMUNICATION TECHNIQUE