Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326968 | Photoelectric sensor with a circular polarizing lens attached to its housing | Donald Johnson, Jim YEE | 1994-07-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326968 | Photoelectric sensor with a circular polarizing lens attached to its housing | Donald Johnson, Jim YEE | 1994-07-05 |