US Patent Class 169
FIRE EXTINGUISHERS-- 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 | ||
| 43 | DF | PROCESSES {3} |
| 48 | DF | APPARATUS WHICH ISOLATES FLAMES FROM NON-BURNING AREA {1} |
| 51 | DF | MOUNT, CABINET OR GUARD {1} |
| 54 | DF | SPECIAL APPLICATIONS {9} |
| 5 | DF | FLUID SYSTEMS {7} |
| 19 | DF | AUTOMATIC VALVES {1} |
| 23 | DF | ALARMS |
| 26 | DF | AUTOMATIC RECEPTACLES {3} |
| 30 | DF | PORTABLE VESSELS {5} |
| 37 | DF | SPRINKLER HEADS {4} |
| 42 | DF | FUSIBLE CONNECTIONS |
| 91 | DF | MISCELLANEOUS: E.G., BLOWERS |
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| DIGESTS | ||
| ****************************** | ||
| DIG 1 | DF | Floats |
| DIG 2 | DF | Ablative fluids |
| DIG 3 | DF | Trip mechanisms |