发明名称 Golf water-impregnate force practice device
摘要 A golf water-impregnate force practice device comprised of a handle, a connector, and a transparent container. Since the transparent container is filled with water to a level totaling 60 to 80 percent of its capacity, the static equilibrium of the controlling water level as well as the force of release are observable to achieve a proper and effective golf ball striking practice tool.
申请公布号 US2002072427(A1) 申请公布日期 2002.06.13
申请号 US20000733978 申请日期 2000.12.12
申请人 CHANG YAO-SONG 发明人 CHANG YAO-SONG
分类号 A63B15/00;A63B69/36;(IPC1-7):A63B69/36 主分类号 A63B15/00
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