Inventor

MATUSCHEK HANS J

US4 patents

Patents

4 patents

US5335740AAug 9, 1994

Drive system

SCOTT & FETZER CO32 citations91

US5285550AFeb 15, 1994

Self-propelled vacuum cleaner having forward and reverse drive

SCOTT & FETZER CO29 citations91

US5115537AMay 26, 1992

Drive system

SCOTT & FETZER CO28 citations91

US5187832AFeb 23, 1993

Convertible self-proprelled vacuum cleaner

SCOTT & FETZER CO10 citations72