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发明名称
Apparatus for loading coal
摘要
申请公布号
US2195544(A)
申请公布日期
1940.04.02
申请号
US19370161118
申请日期
1937.08.26
申请人
STAHL CHARLES R;KENNETH DAVIS
发明人
STAHL CHARLES R.;DAVIS KENNETH
分类号
E21F13/06
主分类号
E21F13/06
代理机构
代理人
主权项
地址
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