Combined helicopter and aeroplane,申请号US19310564687-传众专利搜索

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发明名称	Combined helicopter and aeroplane
摘要
申请公布号	US1925609(A)	申请公布日期	1933.09.05
申请号	US19310564687	申请日期	1931.09.23
申请人	GEORGE PALL	发明人	SANTARSIERO ANTHONY V.
分类号	B64C29/00	主分类号	B64C29/00
代理机构		代理人
主权项
地址

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