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Co-extruded materials and methods
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Patent number 8,820,133
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Issue date Sep 2, 2014
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Apple Inc.
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Douglas Weber
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3914359
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Patent number 3,914,359
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Issue date Oct 21, 1975
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B28 - WORKING CEMENT, CLAY, OR STONE
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2262618
-
Patent number 2,262,618
-
Issue date Nov 11, 1941
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B28 - WORKING CEMENT, CLAY, OR STONE
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1896126
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Patent number 1,896,126
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Issue date Feb 7, 1933
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B28 - WORKING CEMENT, CLAY, OR STONE
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1845695
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Patent number 1,845,695
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Issue date Feb 16, 1932
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B28 - WORKING CEMENT, CLAY, OR STONE