1792481

Information

• Patent Grant
• 1792481

• References
• Source

• Patent Number

  1,792,481

• Date Filed

  Not available

• Date Issued

  Tuesday, February 17, 1931
  93 years ago

• CPC

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

• US Classifications

  • 029 - Metal working
  • 076 - Metal tools and implements, making