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发明名称
Boom angle and radius indicator
摘要
申请公布号
US2374298(A)
申请公布日期
1945.04.24
申请号
US19430477119
申请日期
1943.02.25
申请人
NIEL NASSET OLAF
发明人
NASSET OLAF NIEL
分类号
B66C23/90
主分类号
B66C23/90
代理机构
代理人
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地址
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