GRAB-ROLL SCREEN,申请号CAD621858-传众专利搜索

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发明名称	GRAB-ROLL SCREEN
摘要
申请公布号	CA621858(A)	申请公布日期	1961.06.13
申请号	CAD621858	申请日期
申请人	SILVER ENGINEERING WORKS	发明人	CLARENCE R. STEELE;HAROLD F. SILVER;FRANK B. PRICE;JAMES C. WRIGHT
分类号		主分类号
代理机构		代理人
主权项
地址

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