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发明名称
Heating apparatus for use in vacuum, vapor, or low-pressure heating systems
摘要
申请公布号
US2676758(A)
申请公布日期
1954.04.27
申请号
US19480061498
申请日期
1948.11.22
申请人
EMMONS ROY D
发明人
EMMONS ROY D.
分类号
F24D1/00
主分类号
F24D1/00
代理机构
代理人
主权项
地址
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