3844043

Information

• Patent Grant
• 3844043

• References
• Source

• Patent Number

  3,844,043

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1974
  50 years ago

• CPC

  • B43L7/12 - Square and pivoted straightedges
  • B43L13/007 - Contour tracing devices
  • G01B3/563 - Protractors

• US Classifications

  • 033 - Geometrical instruments