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发明名称
Boiler
摘要
申请公布号
US2709991(A)
申请公布日期
1955.06.07
申请号
US19540419944
申请日期
1954.03.30
申请人
WIEGAND HOWARD W
发明人
WIEGAND HOWARD W.
分类号
F24H1/22;F24H1/40;F24H1/44
主分类号
F24H1/22
代理机构
代理人
主权项
地址
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