3218717

Information

• Patent Grant
• 3218717

• References
• Source

• Patent Number

  3,218,717

• Date Filed

  Not available

• Date Issued

  Tuesday, November 23, 1965
  59 years ago

• CPC

  • B43L13/004 - Manual lettering devices
  • Y10S33/01 - Magnetic

• US Classifications

  • 033 - Geometrical instruments