3395413

Information

• Patent Grant
• 3395413

• References
• Source

• Patent Number

  3,395,413

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1968
  56 years ago

• CPC

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

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning