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发明名称
Improvements relating to the construction of staircases
摘要
申请公布号
GB741539(A)
申请公布日期
1955.12.07
申请号
GB19530033182
申请日期
1953.11.30
申请人
SCAFFOLDING (GREAT BRITAIN) LIMITED
发明人
BOYLE ALAN OLIVER
分类号
E04F11/112
主分类号
E04F11/112
代理机构
代理人
主权项
地址
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