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发明名称
PROCEDIMENTO DI FRANTUMAZIONE DI MATERIALE COMPATTO E DURO,QUALE UNA ROCCIA
摘要
申请公布号
IT1072997(B)
申请公布日期
1985.04.13
申请号
IT19760028094
申请日期
1976.10.07
申请人
INSTITUT CERAC SA
发明人
分类号
E21C37/02;E21C37/04;(IPC1-7):B02C/
主分类号
E21C37/02
代理机构
代理人
主权项
地址
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