1770847

Information

• Patent Grant
• 1770847

• References
• Source

• Patent Number

  1,770,847

• Date Filed

  Not available

• Date Issued

  Tuesday, July 15, 1930
  93 years ago

• CPC

  • B08B9/38 - the apparatus cleaning by using scrapers, chains, grains of shot, sand or other abrasive means

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning