Improvements in rotary pumps or motors,申请号GB19400009767-传众专利搜索

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发明名称	Improvements in rotary pumps or motors
摘要
申请公布号	GB540158(A)	申请公布日期	1941.10.07
申请号	GB19400009767	申请日期	1940.06.04
申请人	WALTER ERNST	发明人
分类号	F01B1/06	主分类号	F01B1/06
代理机构		代理人
主权项
地址

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