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Filter material charging apparatus
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Patent number 4,305,740
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Issue date Dec 15, 1981
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American Air Filter Company, Inc.
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Alan Revell
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Filter clamping device
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Patent number 4,266,956
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Issue date May 12, 1981
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American Air Filter Company, Inc.
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Alan Revell
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Sealing device for filter cells
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Patent number 4,124,361
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Issue date Nov 7, 1978
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American Air Filter Company, Inc.
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Alan E. Revell
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Door latch device
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Patent number 4,061,373
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Issue date Dec 6, 1977
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American Air Filter Company, Inc.
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Alan E. Revell
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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