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发明名称
Dandy roll
摘要
申请公布号
US1815939(A)
申请公布日期
1931.07.28
申请号
US19290366319
申请日期
1929.05.27
申请人
TROTMAN WALTER G
发明人
TROTMAN WALTER G.
分类号
D21F1/46
主分类号
D21F1/46
代理机构
代理人
主权项
地址
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