HOLLOWING INSERT FOR EXPLOSIVE CHARGES TO BE USED IN BLAST-HOLES,申请号PL19840247515-传众专利搜索

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发明名称	HOLLOWING INSERT FOR EXPLOSIVE CHARGES TO BE USED IN BLAST-HOLES
摘要
申请公布号	PL136510(B2)	申请公布日期	1986.02.28
申请号	PL19840247515	申请日期	1984.05.02
申请人		发明人
分类号	F42B;F42B1/00;(IPC1-7):F42B1/00	主分类号	F42B
代理机构		代理人
主权项
地址

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