3273421

Information

• Patent Grant
• 3273421

• References
• Source

• Patent Number

  3,273,421

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1966
  58 years ago

• CPC

  • G04B13/007 - with differential work

• US Classifications

  • 475 - Planetary gear transmission systems or components
  • 968 - Horology