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发明名称
COAL CONVEYER
摘要
申请公布号
CA432754(A)
申请公布日期
1946.01.29
申请号
CAD432754
申请日期
申请人
CHARLES M. HELYAR
发明人
CHARLES M. HELYAR
分类号
主分类号
代理机构
代理人
主权项
地址
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