1397227

Information

• Patent Grant
• 1397227

• References
• Source

• Patent Number

  1,397,227

• Date Filed

  Not available

• Date Issued

  Tuesday, November 15, 1921
  103 years ago

• CPC

  • B28D1/185 - for brick cleaning
  • B28D1/181 - using cutters loosely mounted on a turning tool support
  • Y10T29/4528 - with rotary head

• US Classifications

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