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发明名称
Dandy roll
摘要
申请公布号
US1969000(A)
申请公布日期
1934.08.07
申请号
US19340714005
申请日期
1934.03.05
申请人
CHENEY BIGELOW WIRE WORKS
发明人
FREEMAN RALPH E.
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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