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发明名称
Coal cutter picks
摘要
申请公布号
GB976538(A)
申请公布日期
1964.11.25
申请号
GB19620033713
申请日期
1962.09.03
申请人
WICKMAN WIMET LIMITED
发明人
BATEMAN WILLIAM HENRY;INETT EDWARD WALTER
分类号
E21C35/18;E21C35/183
主分类号
E21C35/18
代理机构
代理人
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