Method of making real estate charts,申请号US19470750654-传众专利搜索

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发明名称	Method of making real estate charts
摘要
申请公布号	US2484412(A)	申请公布日期	1949.10.11
申请号	US19470750654	申请日期	1947.05.27
申请人	KEEL JAMES M	发明人	KEEL JAMES M.
分类号	G09B29/00	主分类号	G09B29/00
代理机构		代理人
主权项
地址

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