专利内容由知识产权出版社提供
专利名称：Arrangement for securing in a slide plate
hold-down spring in a sewing machine bed
发明人：Walter H. W. Marsh,John Patricia,Alfred
Mack
申请号：US06/448669申请日：19821210公开号：US04444139A公开日：19840424
摘要：A slide plate hold-down spring is provided with a depending portion which isreceived in a well in a sewing machine bed. The depending portion includes a window inwhich a protuberance on the bed engages the spring, and a curved length which engagesa wall of the well.
申请人：THE SINGER COMPANY
代理人：William V. Ebs,Robert E. Smith,Edward L. Bell
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