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发明名称
Marble shooter
摘要
申请公布号
US2129461(A)
申请公布日期
1938.09.06
申请号
US19380185658
申请日期
1938.01.19
申请人
BOERGER EARL A
发明人
BOERGER EARL A.
分类号
A63B65/12;A63F7/24
主分类号
A63B65/12
代理机构
代理人
主权项
地址
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