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Shredder
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Patent number 4,172,400
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Issue date Oct 30, 1979
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Zachry Brierley
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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3333752
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Patent number 3,333,752
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Issue date Aug 1, 1967
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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1090914
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Patent number 1,090,914
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Issue date Mar 24, 1914
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B26 - HAND CUTTING TOOLS CUTTING SEVERING