2422188

Information

• Patent Grant
• 2422188

• References
• Source

• Patent Number

  2,422,188

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1947
  77 years ago

• CPC

  • B31F1/0061 - for making articles of indefinite length

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 219 - Electric heating