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Expired
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Robert Mcalpine
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Individual
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Individual
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Publication of GB190325321ApublicationCriticalpatent/GB190325321A/en
25,321. McAlpine, R. Nov. 20. Building-blocks; slabs.-A mixture of steel slag with Portland or other cement, with or without the addition of clinker, gravel, sand, and the like, is employed for making building-blocks, slabs, and the like.
GB190325321D1903-11-201903-11-20Improvements in the Composition of Building Blocks, Slabs and the like.
ExpiredGB190325321A
(en)
A new or improved concrete or mixture for use in the manufacture of building materials such as, bricks, slabs, walls, flooring, window sills and the like, applicable also for other purposes