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发明名称
Pitch control means for sustaining rotors
摘要
申请公布号
US2404522(A)
申请公布日期
1946.07.23
申请号
US19430499340
申请日期
1943.08.20
申请人
PAUL NEMETH STEPHAN
发明人
NEMETH STEPHAN PAUL
分类号
B64C27/54
主分类号
B64C27/54
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代理人
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