Improvements in electrically operated variable stroke reciprocators and pumps,申请号GB19390005554-传众专利搜索

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发明名称	Improvements in electrically operated variable stroke reciprocators and pumps
摘要
申请公布号	GB525363(A)	申请公布日期	1940.08.27
申请号	GB19390005554	申请日期	1939.02.20
申请人	WILFRID L. SPENCE	发明人
分类号	H02K7/02	主分类号	H02K7/02
代理机构		代理人
主权项
地址

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