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发明名称
Improvements relating to staircases for buildings
摘要
申请公布号
GB1023551(A)
申请公布日期
1966.03.23
申请号
GB19610015600
申请日期
1961.04.29
申请人
BROCKHOUSE STEEL STRUCTURES LIMITED
发明人
SESSIONS ARTHUR GEOFFREY
分类号
E04F11/028
主分类号
E04F11/028
代理机构
代理人
主权项
地址
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