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发明名称
Improvements in or relating to construction elements for use in the construction of roads, supports, buildings or other rigid structures
摘要
申请公布号
GB936416(A)
申请公布日期
1963.09.11
申请号
GB19600041695
申请日期
1960.12.05
申请人
RALPH R. BERG
发明人
分类号
E01C5/10;E04B1/21;E04C2/06
主分类号
E01C5/10
代理机构
代理人
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