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经营范围
发明名称
Double twist spindle
摘要
申请公布号
US2641896(A)
申请公布日期
1953.06.16
申请号
US19500178853
申请日期
1950.08.11
申请人
KARL LANDOLT
发明人
LANDOLT KARL
分类号
D01H7/86
主分类号
D01H7/86
代理机构
代理人
主权项
地址
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