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发明名称
VALVE WITH A BALL SHAPED CLOSURE MEMBER
摘要
申请公布号
PL120674(B1)
申请公布日期
1982.03.31
申请号
PL19770196264
申请日期
1977.02.25
申请人
发明人
分类号
F15B13/044;F16K;F16K11/02;(IPC1-7):F16K11/02;F15B13/04
主分类号
F15B13/044
代理机构
代理人
主权项
地址
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