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发明名称
OPEN GRATE HEATING DEVICE
摘要
申请公布号
CA322991(A)
申请公布日期
1932.06.07
申请号
CAD322991
申请日期
申请人
CLARA GIBBS
发明人
CLARA GIBBS
分类号
主分类号
代理机构
代理人
主权项
地址
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