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发明名称
Beam compass
摘要
申请公布号
US2582488(A)
申请公布日期
1952.01.15
申请号
US19470775849
申请日期
1947.09.24
申请人
KROENLEIN HENRY A
发明人
KROENLEIN HENRY A.
分类号
B43L9/04
主分类号
B43L9/04
代理机构
代理人
主权项
地址
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