Improvements in helical gear pumps,申请号GB19600035138-传众专利搜索

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发明名称	Improvements in helical gear pumps
摘要
申请公布号	GB916155(A)	申请公布日期	1963.01.23
申请号	GB19600035138	申请日期	1960.10.13
申请人	ERICH NETZSCH	发明人
分类号	F04C2/107	主分类号	F04C2/107
代理机构		代理人
主权项
地址

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