Ball valve assembly,申请号US19620184887-传众专利搜索

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发明名称	Ball valve assembly
摘要
申请公布号	US3108287(A)	申请公布日期	1963.10.29
申请号	US19620184887	申请日期	1962.04.03
申请人	STALLWORTH WILLIAM R	发明人	STALLWORTH WILLIAM R.
分类号	E03D1/30;E03D1/34	主分类号	E03D1/30
代理机构		代理人
主权项
地址

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