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发明名称
Means for suspending a workman's cradle or chair from the roof of a building
摘要
申请公布号
GB921298(A)
申请公布日期
1963.03.20
申请号
GB19610000207
申请日期
1961.01.03
申请人
FRANCIS THOMAS LIGHTFOOT
发明人
分类号
E04G3/34
主分类号
E04G3/34
代理机构
代理人
主权项
地址
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