1839418

Information

• Patent Grant
• 1839418

• References
• Source

• Patent Number

  1,839,418

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1932
  93 years ago

• CPC

  • B23P15/005 - keys
  • Y10T29/442 - of key article
  • Y10T409/300952 - to cut lock key

• US Classifications

  • 029 - Metal working
  • 409 - Gear cutting, milling, or planing