Improved process and means for the production of gear wheels from steel,申请号GB19490017732-传众专利搜索

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发明名称	Improved process and means for the production of gear wheels from steel
摘要
申请公布号	GB662705(A)	申请公布日期	1951.12.12
申请号	GB19490017732	申请日期	1949.07.05
申请人	FRITZ WILHELM SIEBEL	发明人
分类号	B21K1/30	主分类号	B21K1/30
代理机构		代理人
主权项
地址

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