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发明名称
Pin setting and ball returning device
摘要
申请公布号
US1931824(A)
申请公布日期
1933.10.24
申请号
US19290384365
申请日期
1929.08.08
申请人
LLOYD RICHARD L
发明人
LLOYD RICHARD L.
分类号
A63D5/02;A63D5/08
主分类号
A63D5/02
代理机构
代理人
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地址
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