Vacuum seal for driers,申请号US19310532493-传众专利搜索

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发明名称	Vacuum seal for driers
摘要
申请公布号	US1924883(A)	申请公布日期	1933.08.29
申请号	US19310532493	申请日期	1931.04.24
申请人	DOMINION ENGINEERING WORKS LIMITED	发明人	RUSSELL ANDREW N.
分类号	F26B13/00	主分类号	F26B13/00
代理机构		代理人
主权项
地址

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