1778288

Information

• Patent Grant
• 1778288

• References
• Source

• Patent Number

  1,778,288

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1930
  94 years ago

• CPC

  • B24B7/245 - discontinuous
  • B24B7/24 - for grinding or polishing glass

• US Classifications

  • 451 - Abrading