Inventor
SHAFFER WALTER M
10 patents
⚠️ This page may combine multiple inventors who share the name “SHAFFER WALTER M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CATERPILLAR TRACTOR CO
8 patentsUS4057019ANov 8, 1977
Self-contained steering guidance means
CATERPILLAR TRACTOR CO44 citations91
US4271723AJun 9, 1981
Power train with an auxiliary creeper drive system
CATERPILLAR TRACTOR CO14 citations72
US4189276AFeb 19, 1980
Side loading ultra-narrow aisle lift truck
CATERPILLAR TRACTOR CO8 citations72
US4132132AJan 2, 1979
Power train with an auxiliary creeper drive system
CATERPILLAR TRACTOR CO16 citations72
US4056989ANov 8, 1977
Vehicle drive
CATERPILLAR TRACTOR CO8 citations72
US4034881AJul 12, 1977
Outrigger and frame support member
CATERPILLAR TRACTOR CO7 citations72
US3976158AAug 24, 1976
Power steering system for electric-drive lift truck
CATERPILLAR TRACTOR CO13 citations72
US4099378AJul 11, 1978
Blocking valve for power steering for lift trucks
CATERPILLAR TRACTOR CO2 citations61