1622869

Information

• Patent Grant
• 1622869

• References
• Source

• Patent Number

  1,622,869

• Date Filed

  Not available

• Date Issued

  Tuesday, March 29, 1927
  98 years ago

• CPC

  • B28D1/185 - for brick cleaning

• US Classifications

  • 125 - Stone working
  • 015 - Brushing, scrubbing, and general cleaning