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发明名称
Improvements in or relating to method and apparatus for making pipe from concrete and like materials
摘要
申请公布号
GB706132(A)
申请公布日期
1954.03.24
申请号
GB19510020485
申请日期
1951.08.30
申请人
GEORGE RONALD JESSEN
发明人
分类号
B28B21/24
主分类号
B28B21/24
代理机构
代理人
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