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发明名称
ABRADING TOOL
摘要
申请公布号
CA404138(A)
申请公布日期
1942.04.14
申请号
CAD404138
申请日期
申请人
UNITED SHOE MACHINERY COMPANY OF CANADA
发明人
NORWOOD HALE KNOWLTON
分类号
主分类号
代理机构
代理人
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