Hiroshi Iwasaki

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Panel shutter device
- Patent number 5,172,742
- Issue date Dec 22, 1992
- Sanwa Shutter Corporation
- Hiroshi Iwasaki
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS