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发明名称
Improvements relating to the prevention or extinction of fire
摘要
申请公布号
GB492351(A)
申请公布日期
1938.09.19
申请号
GB19360033308
申请日期
1936.12.04
申请人
CHARLES ROBERT DUFRAISSE
发明人
分类号
A62D1/00
主分类号
A62D1/00
代理机构
代理人
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