2423779

Information

• Patent Grant
• 2423779

• References
• Source

• Patent Number

  2,423,779

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1947
  77 years ago

• CPC

  • B43L7/005 - combined with other drawing aids
  • B43L7/08 - with arrangements for attaching additional drawing equipment

• US Classifications

  • 033 - Geometrical instruments