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3655469
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Patent number 3,655,469
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B44 - DECORATIVE ARTS
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3207062
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Patent number 3,207,062
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Issue date Sep 21, 1965
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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3148269
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Patent number 3,148,269
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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3050106
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Patent number 3,050,106
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Issue date Aug 21, 1962
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B28 - WORKING CEMENT, CLAY, OR STONE
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2692221
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Issue date Oct 19, 1954
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL