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经营范围
发明名称
Variable-pitch propeller
摘要
申请公布号
US2353566(A)
申请公布日期
1944.07.11
申请号
US19420452623
申请日期
1942.07.28
申请人
ESCHER WYSS MASCHINENFABRIKEN AKTIENGESELLSCHAFT
发明人
KELLER CURT
分类号
B64C11/42
主分类号
B64C11/42
代理机构
代理人
主权项
地址
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