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ELKINS PARK, PA US
1. 20100170730 Curb-climbing power wheelchair - mid-wheel drive power wheelchair for use by handicapped and disabled persons is provided having a frame 07-08-20102. 20090309277 Vacuum nitriding furnace - heat treating furnace is disclosed for nitride case hardening and gas cooling a stationary workload in the same furnace which 12-17-2009