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经营范围
发明名称
Stoking apparatus ash removal means
摘要
申请公布号
US2546171(A)
申请公布日期
1951.03.27
申请号
US19450608232
申请日期
1945.08.01
申请人
KOPPERS COMPANY, INC.
发明人
SHAFFER CHESTER E.;JR. ALBERT BOYD FISHER,
分类号
F23J1/00
主分类号
F23J1/00
代理机构
代理人
主权项
地址
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