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发明名称
Machine for grinding and polishing blocks of stone
摘要
申请公布号
US2569291(A)
申请公布日期
1951.09.25
申请号
US19490132933
申请日期
1949.12.14
申请人
LINCOLN IRON WORKS
发明人
DAVIS RICHARD H.
分类号
B24B7/02
主分类号
B24B7/02
代理机构
代理人
主权项
地址
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