Improvements in gear-wheel pumps,申请号GB19350030921-传众专利搜索

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发明名称	Improvements in gear-wheel pumps
摘要
申请公布号	GB449069(A)	申请公布日期	1936.06.19
申请号	GB19350030921	申请日期	1935.11.08
申请人	JEAN COTAL	发明人
分类号	F04C2/12;F04C14/00	主分类号	F04C2/12
代理机构		代理人
主权项
地址

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