1831972

Information

• Patent Grant
• 1831972

• References
• Source

• Patent Number

  1,831,972

• Date Filed

  Not available

• Date Issued

  Tuesday, November 17, 1931
  93 years ago

• CPC

  • G04D3/003 - for levers
  • Y10T29/44 - Filing
  • Y10T29/513 - Stationary work
  • Y10T409/309912 - including relatively movable components and means to relatively immobilize these components

• US Classifications

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