Improvements in or relating to processes for the production of toothed gear wheels,申请号GB19380033842-传众专利搜索

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发明名称	Improvements in or relating to processes for the production of toothed gear wheels
摘要
申请公布号	GB521478(A)	申请公布日期	1940.05.22
申请号	GB19380033842	申请日期	1938.11.21
申请人	ERNEST MAYER	发明人
分类号	B22D19/00	主分类号	B22D19/00
代理机构		代理人
主权项
地址

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