2631946

Information

• Patent Grant
• 2631946

• References
• Source

• Patent Number

  2,631,946

• Date Filed

  Not available

• Date Issued

  Tuesday, March 17, 1953
  71 years ago

• CPC

  • D21H17/61 - Bitumen
  • D21H5/02 - Patterned paper
  • D21H27/02 - Patterned paper

• US Classifications

  • 427 - Coating processes
  • 118 - Coating apparatus