3742899

Information

• Patent Grant
• 3742899

• References
• Source

• Patent Number

  3,742,899

• Date Filed

  Not available

• Date Issued

  Tuesday, July 3, 1973
  51 years ago

• CPC

  • A41H23/00 - Devices for applying chalk Sharpening or holding chalk

• US Classifications

  • 118 - Coating apparatus
  • 033 - Geometrical instruments