DISPOSITIVO PARA O CORTE E ESCAVACAO DE UM TROCO DE AVANCO DE UM TUNEL OU DE UMA VALA,申请号PT19900094340-传众专利搜索

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发明名称	DISPOSITIVO PARA O CORTE E ESCAVACAO DE UM TROCO DE AVANCO DE UM TUNEL OU DE UMA VALA
摘要
申请公布号	PT94340(A)	申请公布日期	1992.01.31
申请号	PT19900094340	申请日期	1990.06.11
申请人	HEINZ-THEO WALBROEHL	发明人
分类号	E21D9/06;(IPC1-7):E21D/;E02F/	主分类号	E21D9/06
代理机构		代理人
主权项
地址

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