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Henry Peters
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Curing Cements, Concrete, And Artificial Stone
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Abstract
19,180. Peters, H. Sept. 22. Drawings to Specification. Cements.-Portland cement is made from a mixture of slurry and coal which is first dried and then burnt in lumps in a vertical or like kiln with the aid of an air blast.
GB190519180D1905-09-221905-09-22Improvements in the Manufacture of Portland Cement.
ExpiredGB190519180A
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