31978

Information

• Patent Grant
• 31978

• References
• Source

• Patent Number

  31,978

• Date Filed

  Not available

• Date Issued

  Tuesday, April 9, 1861
  164 years ago

• CPC

  • F16H15/04 - Gearings providing a continuous range of gear ratios

• US Classifications

  • 476 - Friction gear transmission systems or components
  • 384 - Bearings