Inventor

RISNER MELVIN G

US5 patents

Patents

5 patents

US4718812AJan 12, 1988

Wheelchair lift with positive automatic handrail

REB MANUFACTURING INC42 citations90

US4606433AAug 19, 1986

Step convertible platform lift

REB MANUFACTURING INC26 citations90

US4474527AOct 2, 1984

Optional manual gravity wheelchair lift

REB MANUFACTURING INC32 citations90

US4551056ANov 5, 1985

Automatic handrail for platform lift

REB MANUFACTURING INC21 citations79

US4480719ANov 6, 1984

Lift platform retainer

REB MANUFACTURING INC5 citations59