Gyroscopic compass and latitude indicator,申请号US19280261283-传众专利搜索

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发明名称	Gyroscopic compass and latitude indicator
摘要
申请公布号	US1801619(A)	申请公布日期	1931.04.21
申请号	US19280261283	申请日期	1928.03.13
申请人	ESTANISLAO ARREA	发明人	ARREA ESTANISLAO
分类号	G01C21/16	主分类号	G01C21/16
代理机构		代理人
主权项
地址

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