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Carnegie Illinois Steel Corp

Carnegie I
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2482878A Reinforced refractory pipe insulation Expired / Lapsed 1946-11-06 1949-09-27 0 Details
US2447208A Extensometer for indicating percent elongation Expired / Lapsed 1945-05-17 1948-08-17 0 Details