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经营范围
发明名称
Improvements in or relating to spark-extinguishers and/or arresters
摘要
申请公布号
GB720940(A)
申请公布日期
1954.12.29
申请号
GB19530011867
申请日期
1953.04.09
申请人
AKTIEBOLAGET B.A. HJORTH & CO.
发明人
分类号
F01N3/06
主分类号
F01N3/06
代理机构
代理人
主权项
地址
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