Sewed seam ripper
US4175498A · kind A · utility
9Cited by
5References
8Claims
0Family size
Inventor
Key dates
| Filing date | Feb 1, 1978 |
| Grant date | Nov 27, 1979 |
| Priority date | — |
| Expiry date | Feb 1, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9454
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.