Inventor
HAHN FREDERICK C
US15 patents
⚠️ This page may combine multiple inventors who share the name “HAHN FREDERICK C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ESCO CORP
14 patentsUS5152088AOct 6, 1992
Excavating tooth point and method of replacement
ESCO CORP66 citations96
US4727663AMar 1, 1988
Excavating tooth having a lock including a basket spring
ESCO CORP78 citations96
US4577423AMar 25, 1986
Excavating tooth system
ESCO CORP82 citations96
US4501079AFeb 26, 1985
Two piece cutting edge construction
ESCO CORP81 citations96
US4470210ASep 11, 1984
Mounting for excavating implement and method
ESCO CORP81 citations96
US4335532AJun 22, 1982
Excavating tooth
ESCO CORP138 citations93
US4716668AJan 5, 1988
Excavating tooth point for use with basket spring retainer
ESCO CORP48 citations92
US4663867AMay 12, 1987
Locking device for whisler type adapter
ESCO CORP52 citations92
US4585117AApr 29, 1986
Flight for link chain conveyor
ESCO CORP29 citations92
US4428131AJan 31, 1984
Excavating tooth
ESCO CORP49 citations92
US4267653AMay 19, 1981
Locking device for excavating equipment
ESCO CORP51 citations92
US5074062ADec 24, 1991
Method of replacing a worn excavating tooth point
ESCO CORP87 citations90
US5188680AFeb 23, 1993
Method of making tooth point
ESCO CORP35 citations85
US4061432ADec 6, 1977
Releasable lock for excavating tooth
ESCO CORP9 citations74