1558474

Information

• Patent Grant
• 1558474

• References
• Source

• Patent Number

  1,558,474

• Date Filed

  Not available

• Date Issued

  Tuesday, October 27, 1925
  99 years ago

• CPC

  • B41K3/40 - for numerical or alphabetical characters

• US Classifications

  • 101 - Printing
  • 076 - Metal tools and implements, making