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经营范围
发明名称
Improvements in or relating to variable pitch propellers
摘要
申请公布号
GB652083(A)
申请公布日期
1951.04.18
申请号
GB19480032165
申请日期
1948.12.13
申请人
LET;JIRI JINDRICH
发明人
分类号
B64C11/06
主分类号
B64C11/06
代理机构
代理人
主权项
地址
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