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发明名称
Spiral roll
摘要
申请公布号
US3013380(A)
申请公布日期
1961.12.19
申请号
US19610093934
申请日期
1961.03.07
申请人
RUDOLF GREINER
发明人
GREINER RUDOLF
分类号
G04B17/34
主分类号
G04B17/34
代理机构
代理人
主权项
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