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发明名称
Dust collector
摘要
申请公布号
US2590958(A)
申请公布日期
1952.04.01
申请号
US19500139510
申请日期
1950.01.19
申请人
JOY MANUFACTURING COMPANY
发明人
GOODRICH ROSS HARRY
分类号
B23Q11/00;E21B21/015
主分类号
B23Q11/00
代理机构
代理人
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地址
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