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CONTINENTAL ASSURANCE Co

CONTINENTA
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2784789A Well packer Expired / Lapsed 1951-12-24 1957-03-12 0 Details
US2766831A Selective cross-over packer Expired / Lapsed 1950-03-06 1956-10-16 0 Details