Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612152 | Method for production of water-proofing sheet | Hirohide Kumabe, Shunzo Kawai | 1986-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612152 | Method for production of water-proofing sheet | Hirohide Kumabe, Shunzo Kawai | 1986-09-16 |