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发明名称
SANDPAPER MANUFACTURE
摘要
申请公布号
CA396618(A)
申请公布日期
1941.05.20
申请号
CAD396618
申请日期
申请人
BROWN COMPANY
发明人
MILTON OSCAR SCHUR
分类号
主分类号
代理机构
代理人
主权项
地址
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