Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4268295 | Method for manufacturing crushed sands from blast furnace water granulated slags | Katsuji Yamamoto, Akira Adachi, Toshiro Kawata, Keisuke Nagano, Seiichi Fujita +1 more | 1981-05-19 |