Educational appliance for airplane operation,申请号US19420437701-传众专利搜索

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发明名称	Educational appliance for airplane operation
摘要
申请公布号	US2332218(A)	申请公布日期	1943.10.19
申请号	US19420437701	申请日期	1942.04.04
申请人	HARRIS GRANT D	发明人	HARRIS GRANT D.
分类号	F41G9/02;G09B19/16	主分类号	F41G9/02
代理机构		代理人
主权项
地址

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