Texas Patents - 2 Matching Results
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- Hoisting Drum.
- Patent for an invention that "relates to improvements in hoisting drums" (line 15-16). Structure, objective, and illustrations of hoisting drums are included.
- Lifting Clamp for Well Casings
- Patent for a lifting clamp for well casings. It is designed to make the lifting of well casings easier and safer for those attaching the clamp to the lifting mechanism.