Safety device,申请号US19470775010-传众专利搜索

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发明名称	Safety device
摘要
申请公布号	US2596928(A)	申请公布日期	1952.05.13
申请号	US19470775010	申请日期	1947.09.19
申请人	DOUGLAS AIRCRAFT COMPANY, INC.	发明人	IDE HOWARD J.
分类号	B64C13/00	主分类号	B64C13/00
代理机构		代理人
主权项
地址

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