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经营范围
发明名称
Aircraft propeller
摘要
申请公布号
US1771654(A)
申请公布日期
1930.07.29
申请号
US19290370830
申请日期
1929.06.14
申请人
POWELL JAMES R
发明人
POWELL JAMES R.
分类号
B64D35/06
主分类号
B64D35/06
代理机构
代理人
主权项
地址
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