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经营范围
发明名称
Collapsible boundary frame for games
摘要
申请公布号
US3226118(A)
申请公布日期
1965.12.28
申请号
US19630274618
申请日期
1963.04.22
申请人
EARL BERGQUIST;CHARLES L. GOBLE;ELIZABETH A. GOBLE
发明人
NEHL GEORGE J.
分类号
A63B71/00
主分类号
A63B71/00
代理机构
代理人
主权项
地址
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