1812909

Information

• Patent Grant
• 1812909

• References
• Source

• Patent Number

  1,812,909

• Date Filed

  Not available

• Date Issued

  Tuesday, July 7, 1931
  93 years ago

• CPC

  • B24B19/001 - for table cutlery
  • Y10T29/47 - Burnishing

• US Classifications

  • 029 - Metal working