2561469

Information

• Patent Grant
• 2561469

• References
• Source

• Patent Number

  2,561,469

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1951
  73 years ago

• CPC

  • B43L12/02 - magnetic
  • B43L13/048 - with T-squares

• US Classifications

  • 033 - Geometrical instruments