3714713

Information

• Patent Grant
• 3714713

• References
• Source

• Patent Number

  3,714,713

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1973
  51 years ago

• CPC

  • B44B3/002 - using a pantograph
  • B44B3/066 - Master copy holders

• US Classifications

  • 033 - Geometrical instruments