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发明名称
SAND PAPER
摘要
申请公布号
CA311305(A)
申请公布日期
1931.05.12
申请号
CAD311305
申请日期
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
FRANCIS G. OKIE
分类号
主分类号
代理机构
代理人
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地址
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