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Die cast vent block
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Patent number 5,586,596
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Issue date Dec 24, 1996
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Lewis G. Freeman
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B22 - CASTING POWDER METALLURGY
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Die cast vacuum valve
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Patent number 5,540,272
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Issue date Jul 30, 1996
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Lewis G. Freeman
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B22 - CASTING POWDER METALLURGY
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Die cast vacuum valve
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Patent number 5,538,069
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Issue date Jul 23, 1996
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Lewis G. Freeman
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B22 - CASTING POWDER METALLURGY
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Vacuum valve filtering system
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Patent number 5,536,286
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Issue date Jul 16, 1996
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Lewis G. Freeman
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Lifting eyebolt assembly
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Patent number 5,125,861
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Issue date Jun 30, 1992
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Lewis G. Freeman
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B66 - HOISTING LIFTING HAULING
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Machine leveling device
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Patent number 5,104,075
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Issue date Apr 14, 1992
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Lewis G. Freeman
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Die cast vacuum valve system
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Patent number 5,101,882
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Issue date Apr 7, 1992
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Chrysler Corporation
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Lewis G. Freeman
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B22 - CASTING POWDER METALLURGY
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