3577944

Information

• Patent Grant
• 3577944

• References
• Source

• Patent Number

  3,577,944

• Date Filed

  Not available

• Date Issued

  Tuesday, May 11, 1971
  53 years ago

• CPC

  • D05B37/063 - in synchronism with the movement of the needle bar or the work-feeding means

• US Classifications

  • 112 - Sewing