| 3128713 | Hydraulic pump | |||
| 3070028 | Air eliminator for rotary mechanical seals in fluid pumps | |||
| 2900919 | Seal assembly for centrifugal pumps | |||
| 2741991 | Pump and packing | |||
| 1946212 | Centrifugal pump | |||
| 1871662 | Method and means for lubricating compressors and the like | |||
| 0879484 | N/A |
| GB877878A |