1446776

Information

• Patent Grant
• 1446776

• References
• Source

• Patent Number

  1,446,776

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1923
  102 years ago

• CPC

  • A47L5/10 - with driven dust-loosening tools

• US Classifications

  • 417 - Pumps
  • 015 - Brushing, scrubbing, and general cleaning