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Mold rotator
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Patent number 8,246,341
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Issue date Aug 21, 2012
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Nike, Inc.
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Lyle R. Hanson
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B28 - WORKING CEMENT, CLAY, OR STONE
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Automated pipe making machine
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Patent number 5,234,331
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Issue date Aug 10, 1993
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Hawkeye Concrete Products Co.
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Ronald D. Schmidgall
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B28 - WORKING CEMENT, CLAY, OR STONE
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Brick making apparatus
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Patent number 5,145,692
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Issue date Sep 8, 1992
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Judson A. Hereford
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B28 - WORKING CEMENT, CLAY, OR STONE
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Masonry manufacture
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Patent number 4,725,216
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Issue date Feb 16, 1988
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Bergood Pty. Limited
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Gary J. Foster
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B28 - WORKING CEMENT, CLAY, OR STONE
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-
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Adobe block press
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Patent number 4,640,671
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Issue date Feb 3, 1987
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John W. Wright
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B28 - WORKING CEMENT, CLAY, OR STONE
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-
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3751206
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Patent number 3,751,206
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Issue date Aug 7, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3662437
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Patent number 3,662,437
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Issue date May 16, 1972
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B28 - WORKING CEMENT, CLAY, OR STONE
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3418412
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Patent number 3,418,412
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Issue date Dec 24, 1968
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B28 - WORKING CEMENT, CLAY, OR STONE
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3386140
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Patent number 3,386,140
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Issue date Jun 4, 1968
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B28 - WORKING CEMENT, CLAY, OR STONE
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3350756
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Patent number 3,350,756
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Issue date Nov 7, 1967
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B28 - WORKING CEMENT, CLAY, OR STONE
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3340582
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Patent number 3,340,582
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Issue date Sep 12, 1967
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B28 - WORKING CEMENT, CLAY, OR STONE
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3245130
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Patent number 3,245,130
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Issue date Apr 12, 1966
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B28 - WORKING CEMENT, CLAY, OR STONE