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GRELLET COLLINS

GRELLET CO
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US1696994A Mixing tank Expired / Lapsed 1923-05-08 1929-01-01 0 Details
US1524605A Apparatus for treating paper stock Expired / Lapsed 1923-11-15 1925-01-27 0 Details