3262144

Information

• Patent Grant
• 3262144

• References
• Source

• Patent Number

  3,262,144

• Date Filed

  Not available

• Date Issued

  Tuesday, July 26, 1966
  59 years ago

• CPC

  • B43L21/02 - with means for absorbing the chalk dust

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning