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发明名称
Electric circulating heater
摘要
申请公布号
US2438670(A)
申请公布日期
1948.03.30
申请号
US19460668194
申请日期
1946.05.08
申请人
H. F. MACDONALD;J. C. MACDONALD
发明人
MACDONALD HARRY F.;ASKERS WILLIAM N.
分类号
F24H3/04
主分类号
F24H3/04
代理机构
代理人
主权项
地址
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