1392172

Information

• Patent Grant
• 1392172

• References
• Source

• Patent Number

  1,392,172

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1921
  103 years ago

• CPC

  • B24B29/00 - Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
  • Y10S451/906 - Machine element or unit
  • Y10T74/18312 - Grooved

• US Classifications

  • 451 - Abrading
  • 074 - Machine element or mechanism