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BJ Service Inc

BJ Service
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2854080A Well packer Expired / Lapsed 1954-12-23 1958-09-30 0 Details
US2843459A Thermochemical logging tool Expired / Lapsed 1955-02-07 1958-07-15 2 Details