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Edwin Auguste Trapnell
Robert Ley Wood
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Curing Cements, Concrete, And Artificial Stone
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Abstract
28,368. Trapnell, E. A., and Wood, H. L. Dec. 27. Bricks and tiles for floors, roofs, walls, &c, are made with a mottled or granitic appearance by grinding together in a semi-plastic condition slags or slag-shales, which, when burnt, have different shades or colours, the bricks &c. being made in the ordinary manner.
GB190428368D1904-12-271904-12-27Improvements in the Manufacture of Bricks Tiles and the like.
ExpiredGB190428368A
(en)
A procedure for manufacturing bricks, canopies, paving stones, tiles, wainscoting, jugs and the like with the new product called "Mallol Conglomerate".