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发明名称
Propeller blade pitch control mechanism
摘要
申请公布号
US2307630(A)
申请公布日期
1943.01.05
申请号
US19390304229
申请日期
1939.11.13
申请人
EMIL MARTINOVSKY
发明人
MARTINOVSKY EMIL
分类号
B64C11/36
主分类号
B64C11/36
代理机构
代理人
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地址
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