3881535

Information

• Patent Grant
• 3881535

• References
• Source

• Patent Number

  3,881,535

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1975
  49 years ago

• CPC

  • A47L5/367 - Suction cleaners for fixing on staircases
  • Y10T74/2141 - Sliding pawls

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning
  • 074 - Machine element or mechanism
  • 188 - Brakes