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发明名称
METHOD FOR BLASTING ROCK
摘要
申请公布号
UST101301(I4)
申请公布日期
1981.12.01
申请号
US19790154420
申请日期
1979.09.02
申请人
PERSSON PER ANDERS;HOLMBERG ROGER;NORD GUNNAR
发明人
PERSSON PER-ANDERS;HOLMBERG ROGER;NORD GUNNAR
分类号
B28D1/00;E21C37/00;E21D9/00;F42D1/00;F42D3/04
主分类号
B28D1/00
代理机构
代理人
主权项
地址
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