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发明名称
LEAKKPREVENTIVE METHOD OF BRANCHED JOINT PORTION OF SEWAGE PIPE
摘要
申请公布号
JPS5287854(A)
申请公布日期
1977.07.22
申请号
JP19760003656
申请日期
1976.01.14
申请人
ABE KAORU
发明人
ABE KAORU
分类号
E03F7/00;E03F3/04;F16L41/02;F16L55/16
主分类号
E03F7/00
代理机构
代理人
主权项
地址
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