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发明名称
COKE TREE PREVENTING GUARDS FOR BOILERS AND FURNACES
摘要
申请公布号
CA472889(A)
申请公布日期
1951.04.17
申请号
CAD472889
申请日期
申请人
SANTO IMBRESCI
发明人
SANTO IMBRESCI
分类号
主分类号
代理机构
代理人
主权项
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