3461564

Information

• Patent Grant
• 3461564

• References
• Source

• Patent Number

  3,461,564

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1969
  55 years ago

• CPC

  • B43L11/041 - by means of a compass

• US Classifications

  • 033 - Geometrical instruments
  • D19 - Office supplies