METHOD AND APPARATUS FOR DRILLING,申请号CAD757503-传众专利搜索

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发明名称	METHOD AND APPARATUS FOR DRILLING
摘要
申请公布号	CA757503(A)	申请公布日期	1967.04.25
申请号	CAD757503	申请日期
申请人	CANADIAN INGERSOLL-RAND COMPANY	发明人	FRANCIS G. FERRABEE
分类号		主分类号
代理机构		代理人
主权项
地址

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