| | CLASS NOTES |
| 600 | DF | PROCESSES {14} |
| 85 | DF | WITH ALARM, INDICATOR, REGISTER, RECORDER, SIGNAL OR INSPECTION MEANS {7} |
| 96.1 | DF | CONSTITUENT MIXTURE VARIATION RESPONSIVE {1} |
| 97 | DF | FLOW, FLUID PRESSURE OR MATERIAL LEVEL, RESPONSIVE {14} |
| 138 | DF | WITH TIME CONTROL {1} |
| 141 | DF | WITH PROGRAM ACTUATOR {1} |
| 143 | DF | AUTOMATIC CONTROL {4} |
| 150 | DF | WITH GAS-LIQUID SURFACE CONTACT MEANS {1} |
| 153 | DF | STRUCTURAL INSTALLATION {6} |
| 173 | DF | COMMINUTING {1} |
| 175 | DF | WITH HEATER OR HEAT EXCHANGER {8} |
| 188 | DF | WITH GAS SEPARATOR |
| 189 | DF | PLURAL CHAMBERS WITH MOVEMENT OF GRANULES THEREBETWEEN |
| 190 | DF | WITH EXTERNAL SUPPLY MEANS FOR REGENERATING MEDIUM, E.G., WATER SOFTENING SYSTEM {1} |
| 192 | DF | WITH PRELIMINARY CHEMICAL MANUFACTURE |
| 193 | DF | WITH PRECOAT ADDING OR APPLYING MEANS |
| 194 | DF | RECIRCULATION {3} |
| 198.1 | DF | WITH MEANS TO ADD TREATING MATERIAL {5} |
| 222 | DF | MAGNETIC {1} |
| 224 | DF | SECTIONAL CHAMBER PRESS TYPE {5} |
| 232 | DF | WITH REPAIR OR ASSEMBLING MEANS {5} |
| 239 | DF | CONVERTIBLE {1} |
| 241 | DF | WITH MOVABLE SUPPORT {1} |
| 243 | DF | ELECTRICAL INSULATING OR ELECTRICITY DISCHARGING |
| 244 | DF | PORTABLE RECEPTACLE WITH HOOD OR CLOSURE {2} |
| 247 | DF | FILTRATE SPLASH PLATE AND/OR DEFLECTOR |
| 248 | DF | WITH DRIP, OVERFLOW OR CONTENT DRAINING FEATURE |
| 249 | DF | BRACKET OR LEG SUPPORT FOR STATIC SEPARATOR ASSEMBLY {1} |
| 251 | DF | COMBINED |
| 252 | DF | SERIALLY CONNECTED DISTINCT TREATING WITH OR WITHOUT STORAGE UNITS {7} |
| 263 | DF | PARTICULATE MATERIAL TYPE SEPARATOR, E.G., ION EXCHANGE OR SAND BED {13} |
| 294 | DF | DIVERSE DISTINCT SEPARATORS {3} |
| 321.6 | DF | CASING DIVIDED BY MEMBRANE INTO SECTIONS HAVING INLET(S) AND/OR OUTLET(S) {15} |
| 322 | DF | PLURAL DISTINCT SEPARATORS {1} |
| 348 | DF | FILTER {25} |
| 511 | DF | LIQUID AS SEPARATING MEDIUM |
| 512.1 | DF | TANGENTIAL FLOW OR CENTRIFUGAL FLUID ACTION {2} |
| 513 | DF | GRAVITATIONAL SEPARATOR {6} |
| 541 | DF | ADJUNCTS |
| 542 | DF | MISCELLANEOUS |
| | ****************************** |
| | CROSS-REFERENCE ART COLLECTIONS |
| | ****************************** |
| 900 | DF | ULTRA PURE WATER (E.G., CONDUCTIVITY WATER) |
| 901 | DF | SPECIFIED LAND FILL FEATURE (E.G., PREVENTION OF GROUND WATER FOULING) |
| 902 | DF | MATERIALS REMOVED {7} |
| 918 | DF | MISCELLANEOUS SPECIFIC TECHNIQUES {5} |
| 928 | DF | PAPER MILL WASTE (E.G., WHITE WATER, BLACK LIQUOR, ETC.) TREATED |
| 929 | DF | HEMOULTRAFILTRATE VOLUME MEASUREMENT OR CONTROL PROCESSES |
| 930 | DF | PAINT DETACKIFYING |
| | ****************************** |
| | DIGESTS |
| | ****************************** |
| DIG 3 | DF | Belt alignment |
| DIG 5 | DF | Coalescer |
| DIG 6 | DF | Dehydrators |
| DIG 7 | DF | Drier blocks |
| DIG 8 | DF | Fat fryer |
| DIG 9 | DF | Floating cover |
| DIG 13 | DF | Part flow-full flow |
| DIG 17 | DF | Twist-on |
