Improvements in variable ratio gearing,申请号GB19380015119-传众专利搜索

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发明名称	Improvements in variable ratio gearing
摘要
申请公布号	GB498800(A)	申请公布日期	1939.01.13
申请号	GB19380015119	申请日期	1938.05.20
申请人	FRANTISEK HEJDUK;JAN NEUMANN	发明人
分类号	G01F15/02	主分类号	G01F15/02
代理机构		代理人
主权项
地址

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