2167341

Information

• Patent Grant
• 2167341

• References
• Source

• Patent Number

  2,167,341

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1939
  85 years ago

• CPC

  • B23P15/005 - keys
  • Y10T29/442 - of key article

• US Classifications

  • 029 - Metal working