Inventor
BIRR HANS-JOACHIM
DE3 patents
Patents
3 patentsUS4989295AFeb 5, 1991
Telescopic guide wand for floor-cleaning appliances
VORWERK CO INTERHOLDING36 citations88
US4785492ANov 22, 1988
Floor cleaning apparatus
VORWERK CO INTERHOLDING3 citations60
US4846426AJul 11, 1989
Hang-up and protective arrangement for an electrical appliance
VORWERK CO INTERHOLDING1 citations49