Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7494161 | Coming off preventing device of a joint of an air supply and exhaust pipe | Takao Hatakeyama | 2009-02-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7494161 | Coming off preventing device of a joint of an air supply and exhaust pipe | Takao Hatakeyama | 2009-02-24 |