1921897

Information

• Patent Grant
• 1921897

• References
• Source

• Patent Number

  1,921,897

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1933
  91 years ago

• CPC

  • D05B15/04 - for lock-stitch work
  • D05B15/08 - for lock-stitch work
  • Y10T74/1828 - Cam, lever, and slide

• US Classifications

  • 112 - Sewing
  • 074 - Machine element or mechanism