3628251

Information

• Patent Grant
• 3628251

• References
• Source

• Patent Number

  3,628,251

• Date Filed

  Not available

• Date Issued

  Tuesday, December 21, 1971
  53 years ago

• CPC

  • B43L9/02 - Compasses

• US Classifications

  • 033 - Geometrical instruments
  • 401 - Coating implements with material supply
  • D19 - Office supplies