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Houston Oil Field Material Co Inc

Houston Oi
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2622126A Conformable coil Expired / Lapsed 1948-09-20 1952-12-16 0 Details
US2389985A Retractable packer Expired / Lapsed 1941-05-23 1945-11-27 0 Details