Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4532271 | Bituminous paving material and a method for the preparation thereof | Isao Kai, Yozo Mihara | 1985-07-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4532271 | Bituminous paving material and a method for the preparation thereof | Isao Kai, Yozo Mihara | 1985-07-30 |