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Manufacture of roof tiles
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Patent number 6,071,448
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Issue date Jun 6, 2000
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Bhushan Kumar Oberoi
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B28 - WORKING CEMENT, CLAY, OR STONE
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Tile making machine and method
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Patent number 5,820,802
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Issue date Oct 13, 1998
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Redland Technologies Limited
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Bhushan Kumar Oberoi
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B28 - WORKING CEMENT, CLAY, OR STONE
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Cutting mechanisms
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Patent number 4,856,395
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Issue date Aug 15, 1989
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Redland Roof Tiles Limited
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Frank A. F. Smith
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B28 - WORKING CEMENT, CLAY, OR STONE
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Manufacture of concrete tiles
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Patent number 4,758,148
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Issue date Jul 19, 1988
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ABECE Aktiebolag
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Karl B. Jidell
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B28 - WORKING CEMENT, CLAY, OR STONE
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Tile making machines
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Patent number 4,743,193
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Issue date May 10, 1988
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Marley Tile A.G.
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David R. Brittain
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B28 - WORKING CEMENT, CLAY, OR STONE
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Tile making apparatus
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Patent number 4,732,555
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Issue date Mar 22, 1988
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Thomas W. Whitelaw
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B28 - WORKING CEMENT, CLAY, OR STONE