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Jerrold S. Tiers
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St. Louis, MO, US
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last 30 patents
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Patent Grant
Solid state amplifier simulating vacuum tube distortion characteris...
Patent number
5,032,796
Issue date
Jul 16, 1991
St. Louis Music, Inc.
Jerrold S. Tiers
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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last 30 patents
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Patent Application
Solar Collector
Publication number
20120204863
Publication date
Aug 16, 2012
INVENTION HOUSE, LLC
Phillip Gerard Langhorst
F24 - HEATING RANGES VENTILATING