2297999

Information

• Patent Grant
• 2297999

• References
• Source

• Patent Number

  2,297,999

• Date Filed

  Not available

• Date Issued

  Tuesday, October 6, 1942
  81 years ago

• CPC

  • B43L9/16 - Features common to compasses, dividers, and callipers

• US Classifications

  • 033 - Geometrical instruments