Pneumatically operated and controlled aircraft,申请号US19290371138-传众专利搜索

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发明名称	Pneumatically operated and controlled aircraft
摘要
申请公布号	US1879717(A)	申请公布日期	1932.09.27
申请号	US19290371138	申请日期	1929.06.15
申请人	SIKORSKY AVIATION CORPORATION	发明人	SIKORSKY IGOR
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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