3714714

Information

• Patent Grant
• 3714714

• References
• Source

• Patent Number

  3,714,714

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1973
  51 years ago

• CPC

  • B43L13/041 - with toothed racks
  • B43L13/022 - automatic

• US Classifications

  • 033 - Geometrical instruments