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发明名称
SAND AND EARTH PENETRATION PREVENTING DEVICE FOR WATER METER BOX
摘要
申请公布号
JPH059959(A)
申请公布日期
1993.01.19
申请号
JP19910165569
申请日期
1991.07.05
申请人
MAEZAWA KASEI KOGYO KK
发明人
SHIMODA NAOSHI
分类号
E03B9/10
主分类号
E03B9/10
代理机构
代理人
主权项
地址
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