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发明名称
Improvements in or relating to waste pipes for drainage purposes
摘要
申请公布号
GB622543(A)
申请公布日期
1949.05.03
申请号
GB19490000386
申请日期
1946.07.12
申请人
BERNARD HARDY MOORE
发明人
分类号
E03C1/284
主分类号
E03C1/284
代理机构
代理人
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