3180028

Information

• Patent Grant
• 3180028

• References
• Source

• Patent Number

  3,180,028

• Date Filed

  Not available

• Date Issued

  Tuesday, April 27, 1965
  59 years ago

• CPC

  • B43L13/02 - Draughting machines or drawing devices for keeping parallelism
  • B43L5/025 - with paper rolls

• US Classifications

  • 033 - Geometrical instruments