1653715

Information

• Patent Grant
• 1653715

• References
• Source

• Patent Number

  1,653,715

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1927
  97 years ago

• CPC

  • B25B27/04 - inserting or withdrawing keys
  • B25B27/023 - using screws
  • Y10T29/53822 - Machine key and another member

• US Classifications

  • 029 - Metal working
  • 269 - Work holders