Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821575 | Ultrasonic flaw detecting method and apparatus | Yoichi Fujikake, Takao Sugimoto, Kiyohide Tamaki | 1989-04-18 |
| D300644 | Toy trackway | — | 1989-04-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821575 | Ultrasonic flaw detecting method and apparatus | Yoichi Fujikake, Takao Sugimoto, Kiyohide Tamaki | 1989-04-18 |
| D300644 | Toy trackway | — | 1989-04-11 |