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发明名称
Fire box for boilers
摘要
申请公布号
US1771291(A)
申请公布日期
1930.07.22
申请号
US19270221265
申请日期
1927.09.22
申请人
EMERSON GEORGE H
发明人
EMERSON GEORGE H.
分类号
F22B13/12
主分类号
F22B13/12
代理机构
代理人
主权项
地址
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