1635821

Information

• Patent Grant
• 1635821

• References
• Source

• Patent Number

  1,635,821

• Date Filed

  Not available

• Date Issued

  Tuesday, July 12, 1927
  97 years ago

• CPC

  • A47L5/10 - with driven dust-loosening tools

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning