HYDRAULIC BACK-PRESSURE ARRESTER,申请号CAD380823-传众专利搜索

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发明名称	HYDRAULIC BACK-PRESSURE ARRESTER
摘要
申请公布号	CA380823(A)	申请公布日期	1939.04.18
申请号	CAD380823	申请日期
申请人	DOMINION OXYGEN COMPANY	发明人	MAURICE P. DEMOTTE
分类号		主分类号
代理机构		代理人
主权项
地址

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