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发明名称
FILLING OF BUFFERING CRUSHING AGENT IN CRUSHING ENGINEERING METHOD
摘要
申请公布号
JPS57184191(A)
申请公布日期
1982.11.12
申请号
JP19810066197
申请日期
1981.05.02
申请人
OKABE KK
发明人
HOASHI KIICHI;KIUCHI KAZUO
分类号
E21C37/10;E21C37/00
主分类号
E21C37/10
代理机构
代理人
主权项
地址
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