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经营范围
发明名称
Radiator for hot air furnaces
摘要
申请公布号
US2231227(A)
申请公布日期
1941.02.11
申请号
US19380246376
申请日期
1938.12.17
申请人
THE JOHNSON SHEET METAL WORKS CORP.
发明人
SCOTT ELISHA H.
分类号
F24H9/00
主分类号
F24H9/00
代理机构
代理人
主权项
地址
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