| Patent No. | Patent Title: |
| 4223531 | Gas pressure to hydraulic pressure converter system in an oil pre... |
| 4223533 | Device for the power-assisted control of a hydraulic transmitter |
| 4220004 | Hydraulic servo-control system with out-of-balance load |
| 4220003 | Apparatus for generating rotational power |
| 4220073 | Control valve for working machines |
| 4218886 | Hydraulic power packs |
| 4218882 | Hydraulic power systems for vehicle braking and levelling systems |
| 4218883 | Hydraulic system for operation of two winches |
| 4218884 | Hydraulic speed governor |
| 4218881 | Belt conveyor drive system |
| 4218955 | Pressure actuated shifting mechanism |
| 4218885 | Hydraulic power packs |
| 4217932 | Hydraulic rotary distributor, particularly for use in power steer... |
| 4216656 | High-efficiency hydrostatic vehicular drive system |
| 4216655 | Wave-operated power plant |
| 4215545 | Hydraulic system for transmitting power from an internal combusti... |
| 4215546 | Hydrostatic transmission control system |
| 4215547 | Hydrostatic system with over control compensation |
| 4215622 | Hydraulic control system |
| 4215543 | Method and apparatus for linear and nonlinear control of a hydrau... |
| 4214445 | Hydraulic circuitry for raise drill apparatus |
| 4214652 | Variable power transmission and absorption device |
| 4214446 | Pressure-flow compensated hydraulic priority system providing sig... |
| 4213301 | Compressed air apparatus for driving fastening elements |
| 4213300 | Variable flow rate control with mechanical override for closed ce... |
| 4213298 | Self-reversing hydraulic control system and self-reversing pump ... |
| 4212228 | Power plant |
| 4212229 | Controller for fluid pressure operated devices |
| 4212165 | Hydraulic control arrangement |
| 4212166 | Hydraulic brake booster and relief valve therefor |
| 4211076 | Energy convertion engine |
| 4211077 | Hybrid hydrostatic-pneumatic power generation system |
| 4211084 | Conversion of energy by means of tethered whirlwinds |
| 4211078 | Dynamic power source |
| 4211080 | Hydraulic power packs |
| 4211126 | Wind machine system for pushing and lifting loads and having impr... |
| 4211079 | Positive neutral control for hydrostatic transmission |
| 4210063 | Fluid power device |
| 4209991 | Dynamic positioning of sea thermal power plants by jet propulsion |
| 4209983 | Internal electric explosion engine |
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