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发明名称
METHOD OF SOLDERING MINING CUTTER TIPS
摘要
申请公布号
PL148800(B1)
申请公布日期
1989.11.30
申请号
PL19860258340
申请日期
1986.03.10
申请人
发明人
分类号
B23K1/08;E21C25/28;(IPC1-7):B23K1/08
主分类号
B23K1/08
代理机构
代理人
主权项
地址
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