1 result for “Owens-Illinois”
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Patent · October 23, 1962
Method for locking of pipe sections (US Patent 3,059,697, 1962)
William A. Pitts received US Patent No. 3,059,697 on October 23, 1962, filed February 15, 1960. The patent's description opens: The present invention is directed to locking threaded sections of well pipe together.