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Method of grouting a drill hole
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Patent number 4,236,849
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Issue date Dec 2, 1980
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Imperial Chemical Industries Limited
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Henry K. Kennedy-Skipton
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Aqueous gypsum composition
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Patent number 4,196,008
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Issue date Apr 1, 1980
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Imperial Chemical Industries Limited
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Henry K. Kennedy-Skipton
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Calcium sulphate hemihydrate plaster
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Patent number 4,157,264
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Issue date Jun 5, 1979
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Imperial Chemical Industries Limited
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Henry K. Kennedy-Skipton
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Method of securing fixing elements in rock
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Patent number 4,114,384
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Issue date Sep 19, 1978
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Imperial Chemical Industries Limited
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Henry Kinny Kennedy-Skipton
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES