2174880

Information

• Patent Grant
• 2174880

• References
• Source

• Patent Number

  2,174,880

• Date Filed

  Not available

• Date Issued

  Tuesday, October 3, 1939
  85 years ago

• CPC

  • B24B31/027 - with additional oscillating movement
  • C23G3/00 - Apparatus for cleaning or pickling metallic material
  • C23G3/04 - for cleaning pipes

• US Classifications

  • 451 - Abrading