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发明名称
MINING APPARATUS
摘要
申请公布号
CA475512(A)
申请公布日期
1951.07.24
申请号
CAD475512
申请日期
申请人
JOY MANUFACTURING COMPANY
发明人
HARRY HERBERT VANDERZEE;CLYDE PUTNAM BALDWIN
分类号
主分类号
代理机构
代理人
主权项
地址
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