HEXAGON SHAPED GRATING,申请号CAD691225-传众专利搜索

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发明名称	HEXAGON SHAPED GRATING
摘要
申请公布号	CA691225(A)	申请公布日期	1964.07.21
申请号	CAD691225	申请日期
申请人	ESSO RESEARCH AND ENGINEERING COMPANY	发明人	HOWARD L. HARTE
分类号		主分类号
代理机构		代理人
主权项
地址

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