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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3260513
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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2940154
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1932409
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Patent number 1,932,409
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Issue date Oct 31, 1933
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1932415
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Patent number 1,932,415
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Issue date Oct 31, 1933
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1896884
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Patent number 1,896,884
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Issue date Feb 7, 1933
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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1842801
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Patent number 1,842,801
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Issue date Jan 26, 1932
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES