In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7669872 | Folding mechanism The disclosed folding mechanism comprises a rear frame member of a bicycle, which has a combining structure positioned at a front portion thereof, wherein the combining structure includes a first joining surface; a front frame member of the bicycle, which has a seco... | 03/02/2010 |
| 7648445 | Elliptical exercise apparatus An elliptical exercise apparatus includes a body having a base frame and two supporting frames uprighted at two opposite sides of the base frame; a pair of lead swing arms each having an upper end pivotally coupled with the corresponding supporting frame wherein a s... | 01/19/2010 |
| 7585019 | Seat reclining mechanism for power wheelchair A seat reclining mechanism for a power wheelchair implements an actuator and a plurality of linkages mechanistically connected to the seat portion, back portion, arm rests and footrests of the wheelchair to recline the back portion and shift the seat in harmony with... | 09/08/2009 |
| 7510510 | Hip-abduction stepper exercise apparatus A hip-abduction stepper exercise apparatus primarily comprises a base and two pedal assemblies settled abreast on the base. Each of the pedal assemblies includes a pedal, a vertical movement module, an expanding movement module, and a recovery module. The pedal is s... | 03/31/2009 |
| 7468023 | Suspension system for walk training A suspension system for walk training in physical therapy is disclosed to include a framework formed of a top rail and two wheeled posts supporting the top rail, a suspension mechanism, which has a suspension rod suspending from the top rail by a suspension rope for... | 12/23/2008 |
| 7362307 | Joystick connectable to the operating member of an exerciser or game machine A joystick used in a motion apparatus, for example, an exerciser or game machine, is disclosed to include a base fixedly fastened to the body of the motion apparatus, a motion member fixedly fastened to the operating member of the motion apparatus for biasing with t... | 04/22/2008 |
| 7226395 | Virtual reality bicycle-training simulation platform A virtual reality bicycle-training simulation platform is disclosed to include a rotary steering unit and rear wheel rack that support the front and rear wheels of a bicycle and are linked to a multimedia system for outputting a signal to the multimedia system indic... | 06/05/2007 |