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发明名称
A device for sealing and filling-in socket joints on pipes, particularly clay pipes
摘要
申请公布号
GB845016(A)
申请公布日期
1960.08.17
申请号
GB19570014258
申请日期
1957.05.03
申请人
HERMANN MUCHER
发明人
分类号
E03C1/122;F16L13/10
主分类号
E03C1/122
代理机构
代理人
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