a standard specifying terminology for various stitches
Class 100: single-thread chainstitches
- 101: single-thread chainstitch
- 103: blindstitch
Class 200: hand stitches
- 201: saddle stitch with threads running parallel, not crossing in holes
- 202: single-thread backstitch going down and up through same holes
- 204: single-thread angled backstitch
- 205: single-thread backstitch with spaces between loops
Class 300: lockstitches
- 301: common lockstitch
- 304: zigzag
Class 400: multi-thread chainstitches
- 401: chainstitch on top, looping on bottom
- 404: zigzag