David D Karlstrom, 703827 41St Ave S, Moorhead, MN 56560
David Karlstrom Phones & Addresses
3827 41St Ave S, Moorhead, MN 56560
6206 14Th St, Moorhead, MN 56560 218-2333369 218-2368263
6258 14Th St, Moorhead, MN 56560 218-2338263
Mentions for David D Karlstrom
Publications & IP owners
Us Patents
Strength And Power Training System
US Patent:
2004024, Dec 2, 2004
Filed:
May 27, 2003
Appl. No.:
10/445535
Inventors:
David D. Karlstrom - Moorhead MN, US
International Classification:
A63B021/06
A63B021/008
A63B021/008
US Classification:
482/093000, 482/112000
Abstract:
A weight machine is used for acceleration movement of heavy weights, and jumping and throwing exercises. The weight machine includes a hydraulic cylinder that will retard movement of the weight under gravity, and will permit free movement against the force of gravity.
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