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发明名称
Rubber covered article
摘要
申请公布号
US1890037(A)
申请公布日期
1932.12.06
申请号
US19300497303
申请日期
1930.11.21
申请人
JOHNSON HERBERT B
发明人
JOHNSON HERBERT B.
分类号
A63B53/14
主分类号
A63B53/14
代理机构
代理人
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