Improvements in crank shafts built up from hollow metal parts,申请号GB19370032993-传众专利搜索

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发明名称	Improvements in crank shafts built up from hollow metal parts
摘要
申请公布号	GB489326(A)	申请公布日期	1938.07.25
申请号	GB19370032993	申请日期	1937.11.30
申请人	HELLMUTH HIRTH	发明人
分类号	F16C3/10	主分类号	F16C3/10
代理机构		代理人
主权项
地址

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