Check valve for refrigerating systems,申请号US19330661661-传众专利搜索

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发明名称	Check valve for refrigerating systems
摘要
申请公布号	US2021689(A)	申请公布日期	1935.11.19
申请号	US19330661661	申请日期	1933.03.20
申请人	GENERAL HOUSEHOLD UTILITIES COMPANY	发明人	JORDAN JAMES D.
分类号	F25B41/04	主分类号	F25B41/04
代理机构		代理人
主权项
地址

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