2170535

Information

• Patent Grant
• 2170535

• References
• Source

• Patent Number

  2,170,535

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1939
  85 years ago

• CPC

  • G04D1/025 - Hand screws
  • Y10T29/49579 - Watch or clock making

• US Classifications

  • 081 - Tools
  • 029 - Metal working
  • 269 - Work holders
  • 968 - Horology