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发明名称
Abrading machine
摘要
申请公布号
US1989939(A)
申请公布日期
1935.02.05
申请号
US19300483889
申请日期
1930.09.23
申请人
AMERICAN OPTICAL COMPANY
发明人
MAYNARD ALBERT E.
分类号
B24B13/02
主分类号
B24B13/02
代理机构
代理人
主权项
地址
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