| 2501622 | Plural stage miller with rotary impactors and rotary screens | |||
| 2392331 | Pulverizing and classifying machine | |||
| 2361278 | Pulverizing mill | |||
| 2240269 | Pulverizing mill | |||
| 2100200 | Grinding mill | |||
| 1697704 | Apparatus for pulverizing | |||
| 1628295 | Pulverizer | |||
| 1541903 | Means for pulverizing, feeding, and burning fuel | |||
| 1352189 | Fly-ball governor | |||
| 1267110 | N/A | |||
| 1081860 | N/A | |||
| 0832801 | N/A | |||
| 0420464 | N/A | |||
| 0341439 | N/A |
| GB185400229A | ||||
| IT286533B | ||||
| DE646437C |