Inventor
HAUB DONALD J
5 patents
Patents
5 patentsUSD273621SApr 24, 1984
Combination sweeper-scrubber floor machine
TENNANT CO60 citations94
US4457036AJul 3, 1984
Debris collecting mechanism
TENNANT CO50 citations91
US4378855AApr 5, 1983
Multi-speed drive with forward/reverse lockout
TENNANT CO62 citations90
US4262382AApr 21, 1981
Multi-speed brush control
TENNANT CO29 citations90
US4365189ADec 21, 1982
Control circuit for reversible electric motors
TENNANT CO24 citations77