577012

Information

• Patent Grant
• 577012

• References
• Source

• Patent Number

  577,012

• Date Filed

  Not available

• Date Issued

  Tuesday, February 16, 1897
  128 years ago

• CPC

  • E05D11/04 - relating to the use of free balls as bearing-surfaces
  • Y10T16/5379 - Circularly distributed balls or rollers
  • Y10T16/53985 - Between opposing surfaces

• US Classifications

  • 016 - Miscellaneous hardware