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发明名称
WATER SUPPLY PROTECTIVE DEVICES
摘要
申请公布号
GB8329725(D0)
申请公布日期
1983.12.14
申请号
GB19830029725
申请日期
1983.11.08
申请人
WIGLEY, A F
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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