US Patent Class 219
ELECTRIC HEATING-- Main Headings
 Electronic File Wrappers |  Electronic Patent Documents |  Paper Patent Documents | Current as of: June, 1999
|  and Services |
| Electronic File Wrappers | Electronic Patent Documents | Paper Patent Documents | Current as of: June, 1999
| and Services |
| CLASS NOTES | ||
| 600 | DF | INDUCTIVE HEATING {7} |
| 678 | DF | MICROWAVE HEATING {15} |
| 764 | DF | CAPACITIVE DIELECTRIC HEATING {5} |
| 50 | DF | METAL HEATING (E.G., RESISTANCE HEATING) {19} |
| 200 | DF | HEATING DEVICES {14} |