Improvements in and relating to rotary vacuum pumps,申请号GB19370004004-传众专利搜索

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发明名称	Improvements in and relating to rotary vacuum pumps
摘要
申请公布号	GB480993(A)	申请公布日期	1938.03.03
申请号	GB19370004004	申请日期	1937.02.10
申请人	FRANK EDMUND BANCROFT;METROPOLITAN-VICKERS ELECTRICAL COMPANY LIMITED	发明人
分类号	F04C27/02	主分类号	F04C27/02
代理机构		代理人
主权项
地址

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