1427039

Information

• Patent Grant
• 1427039

• References
• Source

• Patent Number

  1,427,039

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1922
  102 years ago

• CPC

  • B43L7/12 - Square and pivoted straightedges
  • B43L7/125 - Comprising at least two straightedges remaining parallel

• US Classifications

  • 033 - Geometrical instruments