| | CLASS NOTES |
| 1 | DF | METAL DEFORMING ROLL {2} |
| 4 | DF | WITH INFLATABLE CHAMBER {1} |
| 6 | DF | WITH ANTIDEFLECTION MEANS {1} |
| 8 | DF | WITH MAGNETIC MEANS, PER SE |
| 9 | DF | WITH MEASURING, TESTING, OR INDICATING MEANS {2} |
| 12 | DF | WITH IMPELLOR; E.G., FAN, PUMP |
| 13 | DF | WITH HANDLE {1} |
| 15 | DF | COMBINED; E.G., WITH DRIVING GEAR, WITH VIBRATING MEANS |
| 16 | DF | ROTATABLE RELATIVE TO SUPPORTING SHAFT {2} |
| 21 | DF | WITH INTERNAL WEDGING EXPANDER |
| 22 | DF | WITH SHEET EDGE HOLDER {3} |
| 27 | DF | TAPERED OR BEVELED |
| 28 | DF | WITH SPECIFIC ROLLER EXTERIOR SURFACE STRUCTURE {2} |
| 38 | DF | CIRCUMFERENTIAL SECTORS OR SEGMENTS |
| 39 | DF | SPACED PLURAL ANNULARS ALONG COMMON SHAFT |
| 40 | DF | AXIALLY STACKED ANNULAR MEMBERS {1} |
| 42 | DF | WITH LEAF OR COIL SPRING MEMBER |
| 43 | DF | WITH SPIRAL MEMBER |
| 44 | DF | WITH HELICAL MEMBER |
| 45 | DF | WITH INTERNAL ANCHOR FOR ANNULAR MEMBER |
| 46 | DF | WITH HEATING, COOLING, OR HEAT TRANSFER MEANS |
| 47 | DF | WITH END RING OR REINFORCEMENT |
| 48 | DF | ROLL COVER, PER SE |
| 49 | DF | CONCENTRIC LAYERED ANNULUS {3} |
| 57 | DF | SINGLE ANNULAR MEMBER, PER SE {2} |
| 60 | DF | MISCELLANEOUS |
