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发明名称
Coal breaker
摘要
申请公布号
US1784983(A)
申请公布日期
1930.12.16
申请号
US19290389771
申请日期
1929.08.31
申请人
PENNSYLVANIA CRUSHER COMPANY
发明人
BORTON GEORGE W.
分类号
B02C13/26
主分类号
B02C13/26
代理机构
代理人
主权项
地址
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