186550

Information

• Patent Grant
• 186550

• References
• Source

• Patent Number

  186,550

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1877
  148 years ago

• CPC

  • A47L5/06 - with rotary fans

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning