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发明名称
INSTRUMENTO DE DEMOLICAO DESTINADO A REBENTAR MATERIAIS SOLIDOS
摘要
申请公布号
BR7906491(A)
申请公布日期
1980.05.27
申请号
BR19797906491
申请日期
1979.10.09
申请人
INSTITUT CERAC S/A
发明人
JANACH W;MERMINOD A
分类号
B25D9/06;B25D9/12;E21B1/26;E21C37/22;E21C37/24;(IPC1-7):E21C5/00
主分类号
B25D9/06
代理机构
代理人
主权项
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