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Inventor
KRAUSE WILLIAM F
2 patents
⚠️ This page may combine multiple inventors who share the name “KRAUSE WILLIAM F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HYDRIL
1 patent
US4249599A
Feb 10, 1981
Well safety system
HYDRIL
25 citations
74
HYDRIL CO
1 patent
US4287954A
Sep 8, 1981
Subsurface safety valve
HYDRIL CO
8 citations
69