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Dorr Oliver Inc

Dorr Olive
Active Patents
0
Total Holdings
2

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3259244A Screen with open conduit feed Expired / Lapsed 1963-01-31 1966-07-05 1 Details
US2867429A Calcination of alumina Expired / Lapsed 1957-03-25 1959-01-06 2 Details