3540390

Information

• Patent Grant
• 3540390

• References
• Source

• Patent Number

  3,540,390

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1970
  54 years ago

• CPC

  • D05B1/06 - Single chain-stitch seams
  • D05B57/02 - for chain-stitch sewing machines
  • D05B57/04 - rotary

• US Classifications

  • 112 - Sewing