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发明名称
FROST PROTECTION SYSTEM
摘要
申请公布号
GB8707865(D0)
申请公布日期
1987.05.07
申请号
GB19870007865
申请日期
1987.04.02
申请人
BROMLEY, D E;BROMLEY, E M
发明人
分类号
E03B7/12;F16L53/00
主分类号
E03B7/12
代理机构
代理人
主权项
地址
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