Method of making ring gears,申请号GB19430018150-传众专利搜索

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发明名称	Method of making ring gears
摘要
申请公布号	GB595242(A)	申请公布日期	1947.12.01
申请号	GB19430018150	申请日期	1943.11.02
申请人	JACK & HEINTZ, INC.	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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