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经营范围
发明名称
Boiler
摘要
申请公布号
US2251589(A)
申请公布日期
1941.08.05
申请号
US19390306280
申请日期
1939.11.27
申请人
THE H. B. SMITH COMPANY, INCORPORATED
发明人
HANNUM EDWIN L.;SEELEY LAUREN E.;DESJARDINS EDGAR C.
分类号
F22B13/00;F24H1/32
主分类号
F22B13/00
代理机构
代理人
主权项
地址
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