Vacuum operated three-way valve,申请号US19420441612-传众专利搜索

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发明名称	Vacuum operated three-way valve
摘要
申请公布号	US2439863(A)	申请公布日期	1948.04.20
申请号	US19420441612	申请日期	1942.05.04
申请人	TRICO PRODUCTS CORPORATION	发明人	RAPPL ANTON
分类号	E05F15/08	主分类号	E05F15/08
代理机构		代理人
主权项
地址

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