Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657788 | Methods and apparatus for laser device adjustment | William Carlsen, Eugene F. Duval, Andrew G. Butler, Thomas Zimmerman | 2003-12-02 |
| 6625895 | Servo-controlled automatic level and plumb tool | Zinovy Dolgonosov | 2003-09-30 |
| 6591510 | Method and apparatus for securing and aligning bubble vials | — | 2003-07-15 |
| 6542304 | Laser beam device with apertured reflective element | William Carlsen, Eugene F. Duval, Andrew G. Butler, Thomas Zimmerman | 2003-04-01 |