1858444

Information

• Patent Grant
• 1858444

• References
• Source

• Patent Number

  1,858,444

• Date Filed

  Not available

• Date Issued

  Tuesday, May 17, 1932
  92 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