1472858

Information

• Patent Grant
• 1472858

• References
• Source

• Patent Number

  1,472,858

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1923
  100 years ago

• CPC

  • H01T21/04 - Cleaning

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning