Improvements in or relating to rotary pumps,申请号GB19320009306-传众专利搜索

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发明名称	Improvements in or relating to rotary pumps
摘要
申请公布号	GB376690(A)	申请公布日期	1932.07.14
申请号	GB19320009306	申请日期	1932.03.31
申请人	OTTO SIEMEN;JOHANNES HINSCH	发明人
分类号	F04C19/00	主分类号	F04C19/00
代理机构		代理人
主权项
地址

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