Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330595 | Method for protecting cementware from frost-damage | Michio Tanaka, Tetsuaki Kanemoto | 1982-05-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330595 | Method for protecting cementware from frost-damage | Michio Tanaka, Tetsuaki Kanemoto | 1982-05-18 |