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发明名称
MINING PICK
摘要
申请公布号
CA721161(A)
申请公布日期
1965.11.09
申请号
CAD721161
申请日期
申请人
CHARBONNAGES DE FRANCE
发明人
PIERRE BELUGOU
分类号
主分类号
代理机构
代理人
主权项
地址
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