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发明名称
Bumper switch for ball-rolling games
摘要
申请公布号
US2328667(A)
申请公布日期
1943.09.07
申请号
US19410393394
申请日期
1941.05.14
申请人
RAYMOND T. MOLONEY
发明人
NICOLAUS FRANK G.
分类号
A63D13/00
主分类号
A63D13/00
代理机构
代理人
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地址
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