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发明名称
COAL-GETTING MACHINE WITH ROTARY TRIANGULAR CUTTER
摘要
申请公布号
CS226168(B2)
申请公布日期
1984.03.19
申请号
CS19770005461
申请日期
1977.08.19
申请人
UNITED STATES OF AMERICA,US
发明人
ROEPKE WALLACE W.,US;WILSON RICHARD J.,US;LINDROTH DAVID P.,US
分类号
E21C27/12;E21C27/00;E21C27/24;E21C35/20;E21C35/22;E21C41/00;E21C41/16;(IPC1-7):E21C27/02
主分类号
E21C27/12
代理机构
代理人
主权项
地址
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