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Dust control
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Patent number 4,417,992
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Issue date Nov 29, 1983
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Nalco Chemical Company
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Bhupati R. Bhattacharyya
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B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
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3896039
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Patent number 3,896,039
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Issue date Jul 22, 1975
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E21 - EARTH DRILLING MINING
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3876576
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Patent number 3,876,576
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Issue date Apr 8, 1975
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3837404
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Patent number 3,837,404
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Issue date Sep 24, 1974
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E21 - EARTH DRILLING MINING
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3752079
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Patent number 3,752,079
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Issue date Aug 14, 1973
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E21 - EARTH DRILLING MINING
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3681246
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Patent number 3,681,246
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Issue date Aug 1, 1972
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E21 - EARTH DRILLING MINING
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3657135
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Patent number 3,657,135
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Issue date Apr 18, 1972
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E21 - EARTH DRILLING MINING
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3069293
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Patent number 3,069,293
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Issue date Dec 18, 1962
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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2786815
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Patent number 2,786,815
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Issue date Mar 26, 1957
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E21 - EARTH DRILLING MINING