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Inventor
CRONE RICHARD L
US
2 patents
⚠️ This page may combine multiple inventors who share the name “CRONE RICHARD L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
3M INNOVATIVE PROPERTIES CO
1 patent
US7219619B2
May 22, 2007
Shock indicator
3M INNOVATIVE PROPERTIES CO
43 citations
91
MINNESOTA MINING & MFG
1 patent
US4145112A
Mar 20, 1979
Low-profile raised retroreflective sheeting
MINNESOTA MINING & MFG
84 citations
88