| http://www.w3.org/ns/prov#value | - Stone CompanyMethod of making a building panelUS4528037 *Dec 9, 1983Jul 9, 1985Guidat Gilbert RMethod of manufacturing heat insulating aggregates or pellets and product thus obtainedUS4544409 *Oct 5, 1984Oct 1, 1985Daussan Et CompagnieCoating for protecting constructions, particularly against heat and fireUS4699822 *Aug 30, 1985Oct 13, 1987W. R. Grace & Co.Fireproofed metal structural members and
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