Toy helicopter aeroplane,申请号US19290358412-传众专利搜索

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发明名称	Toy helicopter aeroplane
摘要
申请公布号	US1793368(A)	申请公布日期	1931.02.17
申请号	US19290358412	申请日期	1929.04.26
申请人	JOHNSON HELICOPTER TOY AEROPLANE CORPORATION	发明人	JOHNSON JESSE C.
分类号	A63H27/04	主分类号	A63H27/04
代理机构		代理人
主权项
地址

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