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| Number | Title | Issue Date |
| 8104380 | Customizable light bulb changer A light bulb changing tool comprising a holding structure configured to engage a light bulb, the holding structure configured along an axis, the motorized holding structure configured to actuate in a first direction and a second direction. The light bulb changing to... | 01/31/2012 |
| 6336381 | Powered pipe wrench A pipe wrench is provided having a elongated housing, a motor disposed within the housing, and a pipe attachment structure connected to the housing. A rotatable shaft extends from within the housing, transverse to the axis of the housing, and is rotated b... | 01/08/2002 |
| 6058815 | Hand held power tool A hand held power tool with a power drive train extending externally within an elongate housing from a motor disposed near one end of the housing through a handle-forming intermediate portion of the housing to a power takeoff at another end of the housing... | 05/09/2000 |
| 6012359 | Gear transmission cartridge A cartridge includes a housing having two orifices for rotatably receiving two stems respectively. The stems each has a gear extended inward of the housing. A gear transmission device is coupled between the gears of the stems for allowing one of the stems... | 01/11/2000 |
| 4924734 | Quick release and exchange socket drive A side-driven installation tool with a base plate in which a drive collar is rotatably fitted. A socket is drivingly fitted in the drive collar. The drive socket has an external peripheral groove. A retainer plate is slidably mounted to the base plate. In... | 05/15/1990 |
| 4034574 | Universal ball and socket swivel joint There is disclosed a universal or swivel joint having a ball member with an axis of rotation and a projection of substantially spherical shape centered on the axis, the surface of the projection containing a plurality of facets aligned with and uniformly ... | 07/12/1977 |
