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Gypsum Lime and Alabastine Canada Ltd

Gypsum Lim
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2215891A Method of producing hydrated calcium silicate minerals and … Expired / Lapsed 1938-11-12 1940-09-24 0 Details
US1885785A Apparatus for making foam Expired / Lapsed 1927-09-19 1932-11-01 0 Details