2784690

Information

• Patent Grant
• 2784690

• References
• Source

• Patent Number

  2,784,690

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1957
  68 years ago

• CPC

  • D05B57/20 - with bobbin casings held by magnetic forces
  • D05D2207/06 - Permanent magnets

• US Classifications

  • 112 - Sewing