438320

Information

• Patent Grant
• 438320

• References
• Source

• Patent Number

  438,320

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1890
  134 years ago

• CPC

  • F16H25/2228 - the device for circulation forming a part of the screw member
  • F16H25/2214 - with elements for guiding the circulating balls
  • Y10T74/19763 - Roller return path in shaft
  • Y10T74/19953 - Worm and helical
  • Y10T74/19977 - Antifriction

• US Classifications

  • 074 - Machine element or mechanism
  • 188 - Brakes