3906577

Information

• Patent Grant
• 3906577

• References
• Source

• Patent Number

  3,906,577

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1975
  49 years ago

• CPC

  • F28F19/008 - by using scrapers
  • F28G3/10 - having scrapers, hammers, or cutters
  • Y10T29/4511 - Interior surface
  • Y10T29/4561 - Scraper or scalper

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning
  • 029 - Metal working
  • 451 - Abrading