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发明名称
DOUBLE DRAFT DEVICE FOR SPINNING FLAX, JUTE, ETC.
摘要
申请公布号
CA306918(A)
申请公布日期
1930.12.23
申请号
CAD306918
申请日期
申请人
GEORG P. WERSHININ
发明人
GEORG P. WERSHININ
分类号
主分类号
代理机构
代理人
主权项
地址
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