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发明名称
Inclined surface ball game
摘要
申请公布号
US2632649(A)
申请公布日期
1953.03.24
申请号
US19490127873
申请日期
1949.11.17
申请人
SCHAEFER FERDINAND R
发明人
SCHAEFER FERDINAND R.
分类号
A63F7/00
主分类号
A63F7/00
代理机构
代理人
主权项
地址
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