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发明名称
Sewed seam ripper
摘要
An apparatus for cutting sewed seams for use in combination with a home-type sewing machine is disclosed. The unit is lightweight, low cost and may be manufactured to fit any brand of sewing machine.
申请公布号
US4175498(A)
申请公布日期
1979.11.27
申请号
US19780874128
申请日期
1978.02.01
申请人
WALTERS, DEAN
发明人
WALTERS, DEAN
分类号
D05B29/06;D05B89/00;(IPC1-7):D05B37/04
主分类号
D05B29/06
代理机构
代理人
主权项
地址
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