Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663828 | Accessory device for modulating the laser output of a pen-clip actuatable laser pointer | Carl Harry Knowles | 1997-09-02 |
| 5627359 | Laser code symbol scanner employing optical filtering system having narrow band-pass characteristics and spatially separated optical filter elements with laser light collection optics arranged along laser light return path disposed therebetween | Thomas Amundsen, George B. Rockstein, David M. Wilz, Sr., Carl Harry Knowles | 1997-05-06 |