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发明名称
Heating system
摘要
申请公布号
US1994771(A)
申请公布日期
1935.03.19
申请号
US19310547663
申请日期
1931.06.29
申请人
KNOPP OTTO A
发明人
KNOPP OTTO A.
分类号
F23N5/02
主分类号
F23N5/02
代理机构
代理人
主权项
地址
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