Inventor

GERLACH JOHN R

3 patents

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

EMHART IND

2 patents

US4120184AOct 17, 1978

Lock with normally non-removable key and auxiliary key removal device for use in interior locksets

EMHART IND37 citations87

US4215557AAug 5, 1980

Lock with key slot manipulation barrier

EMHART IND2 citations57

EMHART CORP

1 patent

US3945671AMar 23, 1976

Seal lock and the like incorporating permanently secured single engagement

EMHART CORP59 citations91