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发明名称
Device for preventing accumulation of ice on aeroplane propellers
摘要
申请公布号
US1889782(A)
申请公布日期
1932.12.06
申请号
US19320610839
申请日期
1932.05.12
申请人
GEER WILLIAM C
发明人
GEER WILLIAM C.
分类号
B64D15/16
主分类号
B64D15/16
代理机构
代理人
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地址
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