METHOD OF DIAMOND DRILLING,申请号CAD458056-传众专利搜索

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发明名称	METHOD OF DIAMOND DRILLING
摘要
申请公布号	CA458056(A)	申请公布日期	1949.07.12
申请号	CAD458056	申请日期
申请人	CALLITE TUNGSTEN CORPORATION	发明人	JAMES D. WALDIE;JOSEPH SPINA;JACOB KURTZ
分类号		主分类号
代理机构		代理人
主权项
地址

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