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发明名称
Coal washer box
摘要
申请公布号
US1960163(A)
申请公布日期
1934.05.22
申请号
US19310536560
申请日期
1931.05.11
申请人
BERTRAM NORTON
发明人
NORTON BERTRAM
分类号
B03B5/20
主分类号
B03B5/20
代理机构
代理人
主权项
地址
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