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经营范围
发明名称
Pilot guide device
摘要
申请公布号
US2446787(A)
申请公布日期
1948.08.10
申请号
US19450632515
申请日期
1945.12.03
申请人
REETZ HERMAN H
发明人
REETZ HERMAN H.
分类号
B24B15/00
主分类号
B24B15/00
代理机构
代理人
主权项
地址
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