Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4921109 | Card sorting method and apparatus | Shigetsuyo Hasuo, Shigeru Kanazawa, Teruo Kenmochi | 1990-05-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4921109 | Card sorting method and apparatus | Shigetsuyo Hasuo, Shigeru Kanazawa, Teruo Kenmochi | 1990-05-01 |