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US20090229590 Pitching machine  
A pitching machine includes a pedestal, a hopper, a guide channel connecting the hopper with a ball rack for guiding a ball in the hopper to the ball rack, and a ball hitting mechanism which...
US20080178859 ACCELERATION-SENSING LOADER ACTIVATION SYSTEM AND METHOD  
An acceleration-sensing loader activation system can include an acceleration sensor configured to generate an electrical signal corresponding to the magnitude and periodicity of movement of a...
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