Heavier than air flying apparatus with a plurality of airscrews,申请号US19630260428-传众专利搜索

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发明名称	Heavier than air flying apparatus with a plurality of airscrews
摘要
申请公布号	US3195837(A)	申请公布日期	1965.07.20
申请号	US19630260428	申请日期	1963.02.25
申请人	ALBERTO ALVAREZ-CALDERON	发明人	ALVAREZ-CALDERON ALBERTO
分类号	B64C9/00;B64C23/00;B64D27/04	主分类号	B64C9/00
代理机构		代理人
主权项
地址

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