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Pipe lining system and method
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Patent number 10,913,177
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Issue date Feb 9, 2021
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Michels Corporation
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Paul Mallory
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B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
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3888468
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Patent number 3,888,468
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Issue date Jun 10, 1975
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B28 - WORKING CEMENT, CLAY, OR STONE
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3820762
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Patent number 3,820,762
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Issue date Jun 28, 1974
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B28 - WORKING CEMENT, CLAY, OR STONE
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3767170
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Patent number 3,767,170
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Issue date Oct 23, 1973
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B28 - WORKING CEMENT, CLAY, OR STONE
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3526392
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Patent number 3,526,392
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Issue date Sep 1, 1970
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B28 - WORKING CEMENT, CLAY, OR STONE
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3466018
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Patent number 3,466,018
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Issue date Sep 9, 1969
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B28 - WORKING CEMENT, CLAY, OR STONE
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3345044
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Patent number 3,345,044
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Issue date Oct 3, 1967
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B28 - WORKING CEMENT, CLAY, OR STONE
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2739797
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Patent number 2,739,797
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Issue date Mar 27, 1956
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B28 - WORKING CEMENT, CLAY, OR STONE
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1919724
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Patent number 1,919,724
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Issue date Jul 25, 1933
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B28 - WORKING CEMENT, CLAY, OR STONE
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1919220
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Patent number 1,919,220
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Issue date Jul 25, 1933
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B28 - WORKING CEMENT, CLAY, OR STONE
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1424737
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Patent number 1,424,737
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Issue date Aug 1, 1922
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B28 - WORKING CEMENT, CLAY, OR STONE