Patents/Inventors

Ryusei Hamada

ItamiJP2 patents

3 Patents

US123774742025
Drill Head and Drill
SUMITOMO ELECTRIC HARDMETAL Corp.
0 cites
USD10298962024
Drill Head
SUMITOMO ELECTRIC HARDMETAL Corp.
0 cites
USD10290602024
Drill Holder
SUMITOMO ELECTRIC HARDMETAL Corp.
0 cites