2320139

Information

• Patent Grant
• 2320139

• References
• Source

• Patent Number

  2,320,139

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1943
  82 years ago

• CPC

  • B24D13/14 - acting by the front face
  • A47L13/286 - having containers for storing polishing material

• US Classifications

  • 451 - Abrading