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Expired
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Lucas Williams
Henery Tomkins
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Individual
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Individual
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Publication of GB190404433ApublicationCriticalpatent/GB190404433A/en
4433. Williams, L., and Tomkins, H. Feb. 23. Firebricks.-In the manufacture of refractory bricks, blocks, and the like, raw or calcined magnesite, with or without water, is used with silica instead of lime, the proportion being 3 parts of magnesia to 97 of gannister or similar silicious material.
GB190404433D1904-02-231904-02-23Improvements in or relating to, Products of Silica, as a Refractory Material
ExpiredGB190404433A
(en)