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经营范围
发明名称
Improvements in or relating to troughs for endless chain scraper conveyors
摘要
申请公布号
GB704814(A)
申请公布日期
1954.03.03
申请号
GB19510028117
申请日期
1951.11.30
申请人
JOHANN DRIESEN
发明人
分类号
B65G19/28
主分类号
B65G19/28
代理机构
代理人
主权项
地址
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