US Patent Class 267
SPRING DEVICES-- 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 | ||
| 1.5 | DF | PACKING EXPANDER OR CONSTRICTOR |
| 80 | DF | SPRING PANEL {9} |
| 2 | DF | VEHICLE {14} |
| 69 | DF | ELASTIC EXTENSION DEVICES {2} |
| 75 | DF | RECIPROCATING-BED-CUSHIONING DEVICES |
| 113 | DF | FLUID {5} |
| 130 | DF | PRESS CUSHION |
| 131 | DF | SEAT SUPPORT {2} |
| 134 | DF | FRICTION SNUBBER {1} |
| 136 | DF | RESILIENT SHOCK OR VIBRATION ABSORBER {8} |
| 142 | DF | CUSHION FOR HUMAN COMFORT {4} |
| 147 | DF | COMPRESSED WIRE MESH |
| 148 | DF | FIBROUS {1} |
| 150 | DF | CENTERING DEVICE |
| 151 | DF | COMPOUND {1} |
| 153 | DF | RUBBER |
| 154 | DF | TORSION {1} |
| 158 | DF | BENDABLE ALONG FLAT SURFACE (E.G., LEAF SPRING) {5} |
| 166 | DF | COIL {6} |
| 181 | DF | FORAMINATED |
| 182 | DF | MISCELLANEOUS |
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| DIGESTS | ||
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| DIG 1 | DF | Constant height |
| DIG 2 | DF | Constant height, self-pumping |
| DIG 3 | DF | Spring buckle |