PERFECCIONAMIENTOS EN LA CONSTRUCCION DE BROCAS PARA TALA- DROS PROFUNDOS.,申请号ES19580003373-传众专利搜索

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发明名称	PERFECCIONAMIENTOS EN LA CONSTRUCCION DE BROCAS PARA TALA- DROS PROFUNDOS.
摘要
申请公布号	ES337358(A1)	申请公布日期	1968.02.16
申请号	ES19580003373	申请日期	1966.02.28
申请人	A. B. SKANSKA CEMENTGJUTERIET	发明人
分类号	B23B;(IPC1-7):B23B/	主分类号	B23B
代理机构		代理人
主权项
地址

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