Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5414254 | Optical switch with tamper indicating feature for discouraging the use of an external light source to defeat the intended operation of the optical switch | James H. May | 1995-05-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5414254 | Optical switch with tamper indicating feature for discouraging the use of an external light source to defeat the intended operation of the optical switch | James H. May | 1995-05-09 |