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发明名称
FOUR-WAY BALL VALVR,SPECIALLY FOR CONTROLLING LIQUID HAVING DIFFERENT PROPERTIES AND PRESSURE
摘要
申请公布号
PL266299(A1)
申请公布日期
1988.12.22
申请号
PL19870266299
申请日期
1987.06.15
申请人
发明人
分类号
F16K;(IPC1-7):F16K/
主分类号
F16K
代理机构
代理人
主权项
地址
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