2818649

Information

• Patent Grant
• 2818649

• References
• Source

• Patent Number

  2,818,649

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1958
  66 years ago

• CPC

  • A41H3/002 - Set squares or rulers for drafting patterns

• US Classifications

  • 033 - Geometrical instruments