Patents/Inventors

Kam Hoi Ma

Hong KongCN3 patents

4 Patents

US123293342025
Surface Cleaning Apparatus
BISSELL Inc.
0 cites
US121612732024
Surface Cleaning Apparatus
BISSELL Inc.
0 cites
US119309752024
Surface Cleaning Apparatus
BISSELL Inc.
0 cites
US118259962023
Surface Cleaning Apparatus
BISSELL Inc.
0 cites