3442022

Information

• Patent Grant
• 3442022

• References
• Source

• Patent Number

  3,442,022

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1969
  55 years ago

• CPC

  • A41H25/00 - Appliances or methods for marking-out, perforating, or making buttonholes

• US Classifications

  • 033 - Geometrical instruments
  • 223 - Apparel apparatus