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经营范围
发明名称
A square to round inspection chamber cover and frame assembly
摘要
申请公布号
GB2243859(A)
申请公布日期
1991.11.13
申请号
GB19900010698
申请日期
1990.05.12
申请人
PAUL HENRY * O'REILLY
发明人
PAUL HENRY * O'REILLY
分类号
E02D29/12
主分类号
E02D29/12
代理机构
代理人
主权项
地址
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