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发明名称
Improvements relating to revolving doors
摘要
申请公布号
GB641485(A)
申请公布日期
1950.08.16
申请号
GB19470024052
申请日期
1947.08.30
申请人
CECIL ALEXANDER ELLIOTT;SAMUEL ELLIOTT & SONS (READING) LIMITED
发明人
分类号
E06B3/90
主分类号
E06B3/90
代理机构
代理人
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