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发明名称
Improvements relating to protective shelters for use, for example, in air raids
摘要
申请公布号
GB538144(A)
申请公布日期
1941.07.22
申请号
GB19400005940
申请日期
1940.04.02
申请人
FRANCIS EARLE COLLINS
发明人
分类号
E04H9/10
主分类号
E04H9/10
代理机构
代理人
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