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经营范围
发明名称
WATER PIPE LEAK PREVENTOR
摘要
申请公布号
GB8704113(D0)
申请公布日期
1987.04.01
申请号
GB19870004113
申请日期
1987.02.23
申请人
BERMAN, R A
发明人
分类号
F16L55/17
主分类号
F16L55/17
代理机构
代理人
主权项
地址
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