1621805

Information

• Patent Grant
• 1621805

• References
• Source

• Patent Number

  1,621,805

• Date Filed

  Not available

• Date Issued

  Tuesday, March 22, 1927
  97 years ago

• CPC

  • G04D1/025 - Hand screws

• US Classifications

  • 081 - Tools
  • 269 - Work holders
  • 968 - Horology