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经营范围
发明名称
Manufacture of diamond cutting wheels or saws
摘要
申请公布号
US2721488(A)
申请公布日期
1955.10.25
申请号
US19540427540
申请日期
1954.05.04
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED
发明人
EATON ROBERT GEORGE
分类号
B24D18/00
主分类号
B24D18/00
代理机构
代理人
主权项
地址
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