Thread protector
United States Patent 2880761
US Patent References:
/1231450.html
- - 1231450

Suction-rod-guide clamp for oil pumps
- - 1479193

Thread protector
- - 2159929


Inventors:
Peter, Conrad W.
Publication Date:
04/07/1959
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Assignee:
Howard, Gruenberg
Charles II, Rosen
Primary Class:
138/96T
Other Classes:
411/427, 285/419, 285/373
International Classes:
B65D59/00