1831973

Information

• Patent Grant
• 1831973

• References
• Source

• Patent Number

  1,831,973

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1931
  93 years ago

• CPC

  • G04D3/003 - for levers
  • Y10T29/49579 - Watch or clock making
  • Y10T29/5178 - Attachment
  • Y10T409/307056 - and laterally

• US Classifications

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