Surface gauge and marker,申请号US19350013157-传众专利搜索

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发明名称	Surface gauge and marker
摘要
申请公布号	US2045563(A)	申请公布日期	1936.06.30
申请号	US19350013157	申请日期	1935.03.26
申请人	ROBERT BENSON JEWELL	发明人	BENSON JEWELL ROBERT
分类号	E01B35/00;G01C7/04	主分类号	E01B35/00
代理机构		代理人
主权项
地址

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