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发明名称
Bowling pin
摘要
申请公布号
US2797923(A)
申请公布日期
1957.07.02
申请号
US19550485861
申请日期
1955.02.03
申请人
DETTMAN FRED C
发明人
DETTMAN FRED C.
分类号
A63D9/00
主分类号
A63D9/00
代理机构
代理人
主权项
地址
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