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发明名称
Brick-grinding machine
摘要
申请公布号
US1767136(A)
申请公布日期
1930.06.24
申请号
US19270212395
申请日期
1927.08.12
申请人
U. S. SMELTING FURNACE COMPANY
发明人
JONES ARTHUR
分类号
B24B7/22
主分类号
B24B7/22
代理机构
代理人
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地址
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