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经营范围
发明名称
Screwpropeller
摘要
申请公布号
GB385598(A)
申请公布日期
1932.12.29
申请号
GB19310009264
申请日期
1931.03.26
申请人
ALF MORRIS
发明人
分类号
B63H1/26
主分类号
B63H1/26
代理机构
代理人
主权项
地址
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