| D302097 |
Plasma arc torch with angled head |
Pearl A. Grant |
1989-07-11 |
| D299352 |
Torch tip |
Pearl A. Grant |
1989-01-10 |
| 4748312 |
Plasma-arc torch with gas cooled blow-out electrode |
Bruce O. Hatch |
1988-05-31 |
| D295361 |
Electrode tip for a plasma arc cutting torch |
Pearl A. Grant |
1988-04-26 |
| 4691094 |
Plasma-arc torch with sliding gas valve interlock |
Bruce O. Hatch |
1987-09-01 |
| 4663515 |
Plasma-arc torch interlock with flow sensing |
Robert D. Kneeland, Bruce O. Hatch |
1987-05-05 |
| 4663512 |
Plasma-arc torch interlock with pressure sensing |
Robert D. Kneeland, Bruce O. Hatch |
1987-05-05 |
| 4613895 |
Color responsive imaging device employing wavelength dependent semiconductor optical absorption |
Bruce C. Burkey, Roger S. VanHeyningen, Edward L. Wolf |
1986-09-23 |
| 4581516 |
Plasma torch with a common gas source for the plasma and for the secondary gas flows |
Bruce O. Hatch |
1986-04-08 |
| RE31334 |
Acoustooptic scanner apparatus and method |
Royce D. Pickering |
1983-08-02 |
| 4338634 |
Frame-rate converting film scanner with two-dimensional solid state image sensing array |
Peter L. P. Dillon, Evan A. Edwards |
1982-07-06 |
