2156143

Information

• Patent Grant
• 2156143

• References
• Source

• Patent Number

  2,156,143

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1939
  85 years ago

• CPC

  • B41L1/328 - Removing carbon sheets

• US Classifications

  • 462 - Books, strips, and leaves for manifolding