Inventor

CRAWFORD JOHN P

US2 patents

⚠️ This page may combine multiple inventors who share the name “CRAWFORD JOHN P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CRAWFORD JOHN P

1 patent

US9556959B2Jan 31, 2017

Wear-protective sleeve

CRAWFORD JOHN P2 citations62

GROGG THOMAS A

1 patent

US4373831AFeb 15, 1983

Key device for locking an element to a shaft

GROGG THOMAS A15 citations60