发明名称 Throwing apparatus
摘要 An apparatus for throwing an object is mechanically operated and utilizes spring tension to throw an object from a tube which is connected to the spring. The apparatus comprises a base, a frame, apparatus utilized for maintaining the frame at an operating position, a tube and at least one spring. An operator inserts an object to be thrown into the tube, manually moves the tube to a preselected cocked position against spring tension and then releases the tube.
申请公布号 US6877499(B1) 申请公布日期 2005.04.12
申请号 US20040755652 申请日期 2004.01.13
申请人 SPORTS VISION, INC. 发明人 OTTO GARY D.
分类号 A63B69/40;F41B3/03;(IPC1-7):F41B3/00 主分类号 A63B69/40
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