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发明名称
Over-lapping screw ash remover
摘要
申请公布号
US1933656(A)
申请公布日期
1933.11.07
申请号
US19300449761
申请日期
1930.05.05
申请人
IRON FIREMAN MANUFACTURING COMPANY
发明人
CARTER HASKELL C.;RICHARDSON MAX C.
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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