DIGITAL CIRCUIT FOR MEASURING DRILLING SPEEDS,申请号PL19870265466-传众专利搜索

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发明名称	DIGITAL CIRCUIT FOR MEASURING DRILLING SPEEDS
摘要
申请公布号	PL265466(A1)	申请公布日期	1988.11.10
申请号	PL19870265466	申请日期	1987.04.30
申请人		发明人
分类号	G08B;G08C;(IPC1-7):G08C/;G08B/	主分类号	G08B
代理机构		代理人
主权项
地址

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