BUTTERFLY VALVE THRUPORT SEAL,申请号US19760707156-传众专利搜索

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发明名称	BUTTERFLY VALVE THRUPORT SEAL
摘要
申请公布号	US4082246(A)	申请公布日期	1978.04.04
申请号	US19760707156	申请日期	1976.07.21
申请人	DRESSER INDUSTRIES, INC.	发明人	ROTHWELL, THOMAS F.
分类号	F16K1/226;(IPC1-7):F16K1/22	主分类号	F16K1/226
代理机构		代理人
主权项
地址

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