2181363

Information

• Patent Grant
• 2181363

• References
• Source

• Patent Number

  2,181,363

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1939
  85 years ago

• CPC

  • B41L1/34 - for making masters for hectographic duplicators

• US Classifications

  • 101 - Printing
  • 220 - Receptacles
  • 462 - Books, strips, and leaves for manifolding