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经营范围
发明名称
Hemispherical generator
摘要
申请公布号
US2392478(A)
申请公布日期
1946.01.08
申请号
US19430475363
申请日期
1943.02.10
申请人
BAUSCH & LOMB OPTICAL COMPANY
发明人
HOLMAN ARTHUR J.
分类号
B24B11/00;B24B13/02
主分类号
B24B11/00
代理机构
代理人
主权项
地址
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