Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668632 | Method of measuring the soiling of flooring surfaces | Shozaburo Kobayashi | 1997-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668632 | Method of measuring the soiling of flooring surfaces | Shozaburo Kobayashi | 1997-09-16 |