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发明名称
Pitch gauge and milling cutter for propellers
摘要
申请公布号
US2318865(A)
申请公布日期
1943.05.11
申请号
US19400361002
申请日期
1940.10.12
申请人
JOHNSON HAROLD I
发明人
JOHNSON HAROLD I.
分类号
B23C3/18
主分类号
B23C3/18
代理机构
代理人
主权项
地址
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