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发明名称
Precision hole grinder
摘要
申请公布号
US2608807(A)
申请公布日期
1952.09.02
申请号
US19490127832
申请日期
1949.11.17
申请人
ONSRUD MACHINE WORKS, INC.
发明人
NILSEN ARNE;ROHRER KARL
分类号
B24B41/00
主分类号
B24B41/00
代理机构
代理人
主权项
地址
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