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经营范围
发明名称
Furnace wall port closure and operating means therefor
摘要
申请公布号
US2619922(A)
申请公布日期
1952.12.02
申请号
US19470769431
申请日期
1947.08.19
申请人
THE BABCOCK & WILCOX COMPANY
发明人
JR. JOHN C. SINGLETON,
分类号
F23M7/00
主分类号
F23M7/00
代理机构
代理人
主权项
地址
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