2170783

Information

• Patent Grant
• 2170783

• References
• Source

• Patent Number

  2,170,783

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1939
  85 years ago

• CPC

  • B28D1/185 - for brick cleaning

• US Classifications

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