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发明名称
Sander
摘要
申请公布号
US1794032(A)
申请公布日期
1931.02.24
申请号
US19300474141
申请日期
1930.08.09
申请人
RITTMANN GEORGE J
发明人
RITTMANN GEORGE J.
分类号
B60B39/04
主分类号
B60B39/04
代理机构
代理人
主权项
地址
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