P

Inventor

HAHN WILLIAM F

US7 patents
⚠️ This page may combine multiple inventors who share the name “HAHN WILLIAM F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PENNSYLVANIA CRUSHER CORP

3 patents
US3931937AJan 13, 1976

Breaker/crusher

PENNSYLVANIA CRUSHER CORP20 citations78
US4009834AMar 1, 1977

Method of operating breaker/crusher

PENNSYLVANIA CRUSHER CORP14 citations69
US4085897AApr 25, 1978

Crusher-dryer and method of crushing

PENNSYLVANIA CRUSHER CORP12 citations65

PENN VIRGINIA CORP

2 patents
US4544102AOct 1, 1985

Differential rate screening

PENN VIRGINIA CORP18 citations70
US4544101AOct 1, 1985

Differential rate screening

PENN VIRGINIA CORP11 citations69

PENNSYLVANIA CRUSHER

1 patent
US4162767AJul 31, 1979

Impacting crusher with variable flow feed distributor

PENNSYLVANIA CRUSHER33 citations87

HAHN WILLIAM F

1 patent
US4627576ADec 9, 1986

Differential rate screening

HAHN WILLIAM F20 citations72