3804540

Information

• Patent Grant
• 3804540

• References
• Source

• Patent Number

  3,804,540

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1974
  50 years ago

• CPC

  • B43K8/14 - with coreless tubular writing-points

• US Classifications

  • 401 - Coating implements with material supply