Magnetic jack

Manhole cover removing tool

Method and apparatus for lifting

Method and apparatus for lifting

Method and apparatus for winching

Method for lifting a manhole cover

Method for lifting modular furniture

Method for pulling object

Method for supporting modular furniture

Method of dislodging a stuck drift gage

Method of elevating a four wheel vehicle utilizing a tiltable su

Method of lowering and raising loads by means of a jack assembly

Method of operating a screw-propelled rescue tool

Method of removing a stun gun dart

Method of using a hydraulic power unit to control a mechanical j

Method to raise vehicles

Mine extraction device and method

Motor driven scissors jack for automobiles

Motorized support jack

Multiple balls supported push actuator