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经营范围
发明名称
Steam boiler
摘要
申请公布号
US2496985(A)
申请公布日期
1950.02.07
申请号
US19470782404
申请日期
1947.10.27
申请人
COLE EMMETT R
发明人
COLE EMMETT R.
分类号
F22B33/04
主分类号
F22B33/04
代理机构
代理人
主权项
地址
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