2778297

Information

• Patent Grant
• 2778297

• References
• Source

• Patent Number

  2,778,297

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1957
  67 years ago

• CPC

  • D06H1/003 - by passing a needle through the layers

• US Classifications

  • 101 - Printing
  • 112 - Sewing