METHOD OF MANUFACTURING SPHERICAL CAPS OF MILLING BALLS IN PARTICULAR THOSE FOR COAL MILLS,申请号PL19900284897-传众专利搜索

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发明名称	METHOD OF MANUFACTURING SPHERICAL CAPS OF MILLING BALLS IN PARTICULAR THOSE FOR COAL MILLS
摘要
申请公布号	PL162719(B1)	申请公布日期	1994.01.31
申请号	PL19900284897	申请日期	1990.04.23
申请人	WYZSZA SZKOLA PEDAGOG	发明人	TARASEK JAN
分类号	B21D22/04;B21D51/08;(IPC1-7):B21D51/08	主分类号	B21D22/04
代理机构		代理人
主权项
地址

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