Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE37777 | Switch apparatus requiring the hand of the operator to activate the switch by breaking a light beam | Mark C. Matzka | 2002-07-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE37777 | Switch apparatus requiring the hand of the operator to activate the switch by breaking a light beam | Mark C. Matzka | 2002-07-02 |