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Dryer system
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Patent number 4,114,289
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Issue date Sep 19, 1978
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William Paul Boulet
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F26 - DRYING
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Dryer system
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Patent number 3,976,018
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Issue date Aug 24, 1976
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William Paul Boulet
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F26 - DRYING
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3871111
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Patent number 3,871,111
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Issue date Mar 18, 1975
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F26 - DRYING
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3692285
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Patent number 3,692,285
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Issue date Sep 19, 1972
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3371429
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Patent number 3,371,429
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Issue date Mar 5, 1968
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2593401
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Patent number 2,593,401
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Issue date Apr 22, 1952
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F26 - DRYING
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1459326
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Patent number 1,459,326
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Issue date Jun 19, 1923
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F26 - DRYING
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373140
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Patent number 373,140
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Issue date Nov 15, 1887
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F26 - DRYING