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Inventor
HAKE LEWIS W
2 patents
⚠️ This page may combine multiple inventors who share the name “HAKE LEWIS W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PETROLEUM CONCEPTS INC
1 patent
US4478298A
Oct 23, 1984
Drill bit stud and method of manufacture
PETROLEUM CONCEPTS INC
105 citations
88
US ENERGY
1 patent
US4345124A
Aug 17, 1982
Acceleration switch
US ENERGY
9 citations
66