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发明名称
Propeller friction test tool
摘要
申请公布号
US2337546(A)
申请公布日期
1943.12.28
申请号
US19420465567
申请日期
1942.11.14
申请人
COX LEO G
发明人
COX LEO G.
分类号
G01N19/02
主分类号
G01N19/02
代理机构
代理人
主权项
地址
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