Inventor

ULRICH BERTRAM

DE3 patents

Patents

3 patents

US12167789B2Dec 17, 2024

Disk broom, sweeping device and floor cleaning machine

HAKO GMBH0 citations42

US11910986B2Feb 27, 2024

Floor cleaning machine

HAKO GMBH0 citations42

US8806709B2Aug 19, 2014

Vacuum sweeping machine having a suction extraction system for a side broom

HAKO GMBH0 citations40