 Electronic File Wrappers |  Electronic Patent Documents |  Paper Patent Documents | Current as of: June, 1999
|  and Services |
| CLASS NOTES | ||
| 1 | DF | PLURAL DIVERSE HEATING MEANS {3} |
| 8 | DF | ENVIRONMENTAL CONTROL {1} |
| 10 | DF | ELECTRON BEAM FURNACE DEVICE {4} |
| 18 | DF | PLASMA FURNACE DEVICE {3} |
| 26 | DF | GLOW DISCHARGE FURNACE DEVICE |
| 27 | DF | GLASS FURNACE DEVICE {2} |
| 42 | DF | ELECTROSLAG REMELTING DEVICE {7} |
| 56 | DF | WITH CONDENSATING DEVICE {2} |
| 60 | DF | ARC FURNACE DEVICE {9} |
| 109 | DF | RESISTANCE FURNACE DEVICE {7} |
| 138 | DF | INDUCTION FURNACE DEVICE {10} |
| 166 | DF | MISCELLANEOUS |