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发明名称
一种开口曲孔缝衣针
摘要
本实用新型将目前缝衣针根部的椭圆针孔改制成开口曲孔,使往针孔中穿线显得简单易行。
申请公布号
CN2091878U
申请公布日期
1992.01.01
申请号
CN91207106.0
申请日期
1991.04.29
申请人
余建雨
发明人
余建雨
分类号
D05B85/02
主分类号
D05B85/02
代理机构
代理人
主权项
一种由针尖、针体、针孔构成的缝衣针,其特征在于缝衣针的针孔制成孔道宽度为0.2-0.4mm的开口曲孔。
地址
辽宁省阜新市中华路47号817信箱
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