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发明名称
METHOD OF GAS PIPING SYSTEMS
摘要
申请公布号
PL145540(B1)
申请公布日期
1988.09.30
申请号
PL19850256581
申请日期
1985.12.02
申请人
发明人
分类号
C23G;C23G5/024;(IPC1-7):C23G5/024
主分类号
C23G
代理机构
代理人
主权项
地址
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