Spherically curved plotting body and compass for use therewith,申请号US19450593458-传众专利搜索

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发明名称	Spherically curved plotting body and compass for use therewith
摘要
申请公布号	US2619726(A)	申请公布日期	1952.12.02
申请号	US19450593458	申请日期	1945.05.12
申请人	MCMILLEN DRURY A;ANTON STUXBERG	发明人	MCMILLEN DRURY A.;STUXBERG ANTON
分类号	G01C21/02	主分类号	G01C21/02
代理机构		代理人
主权项
地址

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