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Tommyca Freadman
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Taipei, TW
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last 30 patents
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Patent Grant
Tower-type speaker cabinet with pivoted plural speaker subassembly
Patent number
4,884,655
Issue date
Dec 5, 1989
Sparkomatic Corporation
Tommyca Freadman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker
Patent number
D304586
Issue date
Nov 14, 1989
Sparkomatic Corporation
Tommyca Freadman
D14 - Recording, communication, or information retrieval equipment
Information
Patent Grant
Integrated amplifier and speaker system with improved cooling effic...
Patent number
4,625,328
Issue date
Nov 25, 1986
Konutra Industries, Ltd.
Tommyca Freadman
H04 - ELECTRIC COMMUNICATION TECHNIQUE