VALVE CONTROLLED FILTER CHANGE INDICATOR,申请号CAD872594-传众专利搜索

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发明名称	VALVE CONTROLLED FILTER CHANGE INDICATOR
摘要
申请公布号	CA872594(A)	申请公布日期	1971.06.08
申请号	CAD872594	申请日期
申请人	KOEHRING COMPANY	发明人	FRANCIS H. TENNIS
分类号		主分类号
代理机构		代理人
主权项
地址

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