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发明名称
PROCEDIMENTO E DISPOSITIVO PER LA FRANTUMAZIONE DI MATERIALI DU RI E COMPATTI QUALI ROCCE
摘要
申请公布号
IT1035398(B)
申请公布日期
1979.10.20
申请号
IT19750049214
申请日期
1975.04.21
申请人
INSTITUT CERAC S A
发明人
分类号
E21C37/06;E21C37/12;(IPC1-7):E21C/
主分类号
E21C37/06
代理机构
代理人
主权项
地址
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