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发明名称
Conveyer roller construction
摘要
申请公布号
US2190336(A)
申请公布日期
1940.02.13
申请号
US19360086452
申请日期
1936.06.22
申请人
SAMUEL OLSON
发明人
OLSON SAMUEL
分类号
B65G39/09
主分类号
B65G39/09
代理机构
代理人
主权项
地址
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