Inventor

FRANCIS ROBERT L

US4 patents

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

INT HARVESTER CO

2 patents

US4148323AApr 10, 1979

Swept back impeller blade for axial flow rotor

INT HARVESTER CO31 citations91

US4248249AFeb 3, 1981

Combine rotor drive anti-trash system

INT HARVESTER CO16 citations69

CASE CORP

2 patents

US5192246AMar 9, 1993

Rotor assembly for a combine

CASE CORP29 citations89

US5192245AMar 9, 1993

Thresher elements for a combine

CASE CORP45 citations89