CHECK VALVE FOR VACUUM PUMP,申请号CAD668325-传众专利搜索

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发明名称	CHECK VALVE FOR VACUUM PUMP
摘要
申请公布号	CA668325(A)	申请公布日期	1963.08.06
申请号	CAD668325	申请日期
申请人	PRECISION SCIENTIFIC COMPANY	发明人	KENNETH F. WESSLING
分类号		主分类号
代理机构		代理人
主权项
地址

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