"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 5180354 | Rotary cuff exercise machine A rotary cuff exercise machine includes a frame, an elongated platform aligned along a vertical midplane through the frame, and two sides rotatably connected to the frame on opposite sides of the midplane. Each rotatable side includes a horizontally pivot... | 01/19/1993 |
| 5106080 | Leg press exercise machine A leg press exercise machine includes a frame, a declined seat supported by the frame and a pair of levers with upper ends pivotally connected to the frame forward and above the seat. Hubs located at the forward, lower ends of the levers are adapted to ho... | 04/21/1992 |
| 5066004 | Leg extension exercise machine A leg extension exercise machine includes a frame, a declined seat connected to the frame and two independently maneuverable levers pivotally connected to the frame in front of the seat, the levers being pivotal in vertical planes that diverge with respec... | 11/19/1991 |
| 5066003 | Leg curl exercise machine A leg curl exercise machine includes a frame, a platform supported by the frame along a vertical midplane and a pair of levers pivotally connected to the frame in front of the platform. The forward ends of the levers are adapted to hold removable weights ... | 11/19/1991 |