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发明名称
Conveyer apparatus
摘要
申请公布号
US1771006(A)
申请公布日期
1930.07.22
申请号
US19280288478
申请日期
1928.06.26
申请人
WATSON WILLIAM H
发明人
WATSON WILLIAM H.
分类号
E02F3/54
主分类号
E02F3/54
代理机构
代理人
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