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发明名称
Propelling device for aircraft and the like
摘要
申请公布号
US1821450(A)
申请公布日期
1931.09.01
申请号
US19280304477
申请日期
1928.09.07
申请人
AMERICAN PROPELLER COMPANY
发明人
STELZER WILLIAM
分类号
B64D35/04
主分类号
B64D35/04
代理机构
代理人
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地址
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