3911841

Information

• Patent Grant
• 3911841

• References
• Source

• Patent Number

  3,911,841

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1975
  49 years ago

• CPC

  • D05B57/20 - with bobbin casings held by magnetic forces

• US Classifications

  • 112 - Sewing
  • 310 - Electrical generator or motor structure