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发明名称
BALL VALVE
摘要
申请公布号
GB1570449(A)
申请公布日期
1980.07.02
申请号
GB19770048316
申请日期
1977.11.21
申请人
NELIMARKKA J A E
发明人
分类号
F16J15/16;F16J15/52;F16K5/06;F16K5/20;F16K41/10;(IPC1-7):F16K5/20
主分类号
F16J15/16
代理机构
代理人
主权项
地址
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