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发明名称
BALL VALVE
摘要
申请公布号
PL110117(B1)
申请公布日期
1980.07.31
申请号
PL19760194980
申请日期
1976.12.30
申请人
发明人
分类号
B65G53/46;F16K;F16K3/28;(IPC1-7):B65G53/46
主分类号
B65G53/46
代理机构
代理人
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地址
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