Koichi Sagawa

Follow

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Suction nozzle with rotary brush for vacuum cleaner
- Patent number 5,101,534
- Issue date Apr 7, 1992
- Hitachi, Ltd.
- Syuji Watanabe
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Suction nozzle with rotary brush for vacuum cleaner
- Patent number 5,054,156
- Issue date Oct 8, 1991
- Hitachi, Ltd.
- Syuji Watanabe
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...