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经营范围
发明名称
Duckbill valve.
摘要
申请公布号
ZA9806201(B)
申请公布日期
2000.01.13
申请号
ZA19980006201
申请日期
1998.07.13
申请人
UNILEVER PLC.
发明人
ROBERT ALFRED BENNETT
分类号
F16K
主分类号
F16K
代理机构
代理人
主权项
地址
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