1238440

Information

• Patent Grant
• 1238440

• References
• Source

• Patent Number

  1,238,440

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1917
  106 years ago

• CPC

  • B43L9/08 - Proportional compasses or dividers

• US Classifications

  • 033 - Geometrical instruments