2701420

Information

• Patent Grant
• 2701420

• References
• Source

• Patent Number

  2,701,420

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1955
  70 years ago

• CPC

  • B41F3/46 - Details

• US Classifications

  • 033 - Geometrical instruments
  • 101 - Printing