发明名称 Sewing machine threader - formed by pivotal lever having a lateral beard passing through eye in upper dc position of needle
摘要 <p>Sewing machine needle threader is formed by a bushing mounted on the presser foot and a manually operable lever mounted pivotally on the bushing and provided with a laterally extending beard which in the upper d.c. position of the needle is arranged to pass through the needle eye on pivoted displacement of the lever.</p>
申请公布号 DE2052873(A1) 申请公布日期 1972.08.24
申请号 DE19702052873 申请日期 1970.10.28
申请人 发明人
分类号 D05B87/02 主分类号 D05B87/02
代理机构 代理人
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