1993846

Information

• Patent Grant
• 1993846

• References
• Source

• Patent Number

  1,993,846

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1935
  89 years ago

• CPC

  • B43K3/00 - Nib holders
  • B43K8/20 - with roller writing-points

• US Classifications

  • 033 - Geometrical instruments
  • D19 - Office supplies