Butterfly valve with sequential rotating and tilting opening and closing movements,申请号US19480019082-传众专利搜索

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发明名称	Butterfly valve with sequential rotating and tilting opening and closing movements
摘要
申请公布号	US2655942(A)	申请公布日期	1953.10.20
申请号	US19480019082	申请日期	1948.04.05
申请人	D. F. CAMPBELL	发明人	DOUGHERTY RICHARD H.
分类号	F16K1/24	主分类号	F16K1/24
代理机构		代理人
主权项
地址

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