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发明名称
Portable grinder
摘要
申请公布号
US2166861(A)
申请公布日期
1939.07.18
申请号
US19380235493
申请日期
1938.10.17
申请人
DRAHEIM WILLIAM C
发明人
DRAHEIM WILLIAM C.
分类号
B24B23/02
主分类号
B24B23/02
代理机构
代理人
主权项
地址
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