Hygroscopic air escape valve,申请号US19540465363-传众专利搜索

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发明名称	Hygroscopic air escape valve
摘要
申请公布号	US2718234(A)	申请公布日期	1955.09.20
申请号	US19540465363	申请日期	1954.10.28
申请人	BLUMBERG BENJAMIN J	发明人	BLUMBERG BENJAMIN J.
分类号	F16K31/00;F24D19/08	主分类号	F16K31/00
代理机构		代理人
主权项
地址

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