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Inventor
ROSEN KAREN L
US
2 patents
⚠️ This page may combine multiple inventors who share the name “ROSEN KAREN L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AMCO CERTIFICATION SERVICES
1 patent
US5133451A
Jul 28, 1992
Protective coin holder
AMCO CERTIFICATION SERVICES
34 citations
86
AMOS PRESS INC
1 patent
US5011005A
Apr 30, 1991
Protective coin holder
AMOS PRESS INC
39 citations
86