2497709

Information

• Patent Grant
• 2497709

• References
• Source

• Patent Number

  2,497,709

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1950
  75 years ago

• CPC

  • B43L23/06 - in which the pencils or leads are sharpened by only axial movement against cutting blades
  • B43K13/00 - Devices for removing nibs Devices for cleaning nibs
  • B43L25/12 - with pen-wiping means

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning