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发明名称
FURNACE DRAFT CONTROL
摘要
申请公布号
CA296980(A)
申请公布日期
1930.01.28
申请号
CAD296980
申请日期
申请人
FREDERICK DAVIDSON
发明人
FREDERICK DAVIDSON
分类号
主分类号
代理机构
代理人
主权项
地址
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