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发明名称
Propeller
摘要
申请公布号
US2067770(A)
申请公布日期
1937.01.12
申请号
US19350019510
申请日期
1935.05.02
申请人
LEMBAS GEORGE C
发明人
LEMBAS GEORGE C.
分类号
B64C11/00
主分类号
B64C11/00
代理机构
代理人
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