1284372

Information

• Patent Grant
• 1284372

• References
• Source

• Patent Number

  1,284,372

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1918
  106 years ago

• CPC

  • B43L9/20 - Pivots
  • B43L9/02 - Compasses

• US Classifications

  • 033 - Geometrical instruments