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发明名称
Telescopic supporting device for thread guides
摘要
申请公布号
US2690643(A)
申请公布日期
1954.10.05
申请号
US19520278991
申请日期
1952.03.28
申请人
LUIGI VELLA
发明人
VELLA LUIGI
分类号
D01H1/42
主分类号
D01H1/42
代理机构
代理人
主权项
地址
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