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Solid state blower
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Patent number 4,498,851
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Issue date Feb 12, 1985
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Piezo Electric Products, Inc.
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Henry H. Kolm
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Piezoelectric circuit breaker
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Patent number 4,473,859
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Issue date Sep 25, 1984
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Piezo Electric Products, Inc.
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W. Porter Stone
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Piezoelectric fluid-electric generator
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Patent number 4,387,318
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Issue date Jun 7, 1983
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Piezo Electric Products, Inc.
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Eric A. Kolm
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Piezoelectric snap actuator
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Patent number 4,383,195
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Issue date May 10, 1983
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Piezo Electric Products, Inc.
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Henry H. Kolm
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H03 - BASIC ELECTRONIC CIRCUITRY
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Impulse drive system
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Patent number 4,230,978
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Issue date Oct 28, 1980
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Compugraphic Corporation
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John F. Gardella
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G05 - CONTROLLING REGULATING
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Self-purging seal
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Patent number 4,204,948
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Issue date May 27, 1980
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Allis-Chalmers Corporation
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Ionel Wechsler
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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Vortical flow distributor
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Patent number 4,032,114
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Issue date Jun 28, 1977
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Sala Magnetics, Inc.
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Henry H. Kolm
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL