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经营范围
发明名称
Boiler
摘要
申请公布号
US1892908(A)
申请公布日期
1933.01.03
申请号
US19290341084
申请日期
1929.02.19
申请人
NORMAN L. UPPER
发明人
STEAR LAWRENCE E.
分类号
F24H1/44
主分类号
F24H1/44
代理机构
代理人
主权项
地址
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