Compass with means for correcting angle of declination,申请号US19620232964-传众专利搜索

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发明名称	Compass with means for correcting angle of declination
摘要
申请公布号	US3177591(A)	申请公布日期	1965.04.13
申请号	US19620232964	申请日期	1962.10.25
申请人	JOLLEY WILLIAM S	发明人	JOLLEY WILLIAM S.
分类号	G01C17/38	主分类号	G01C17/38
代理机构		代理人
主权项
地址

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