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经营范围
发明名称
Variable pitch propeller
摘要
申请公布号
US2257976(A)
申请公布日期
1941.10.07
申请号
US19380238304
申请日期
1938.11.02
申请人
MOORMAN CHARLES L
发明人
MOORMAN CHARLES L.
分类号
B61D27/00;F04D29/36
主分类号
B61D27/00
代理机构
代理人
主权项
地址
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