1517970

Information

• Patent Grant
• 1517970

• References
• Source

• Patent Number

  1,517,970

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1924
  100 years ago

• CPC

  • B41B5/02 - Matrices

• US Classifications

  • 101 - Printing
  • 199 - Type casting