Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955116 | Method for producing tubular needle punched felt | Katsuyoshi Hayamizu, Hiroyuki Ogawa | 1990-09-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4955116 | Method for producing tubular needle punched felt | Katsuyoshi Hayamizu, Hiroyuki Ogawa | 1990-09-11 |