1864822

Information

• Patent Grant
• 1864822

• References
• Source

• Patent Number

  1,864,822

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1932
  92 years ago

• CPC

  • B24B7/244 - continuous
  • B24B7/24 - for grinding or polishing glass

• US Classifications

  • 451 - Abrading
  • 198 - Conveyors: power-driven