1688428

Information

• Patent Grant
• 1688428

• References
• Source

• Patent Number

  1,688,428

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1928
  96 years ago

• CPC

  • E05F3/08 - in which a torsion spring rotates a member around an axis arranged in the direction of the axis of the piston
  • E05Y2900/132 - Doors
  • Y10T16/2769 - Cam

• US Classifications

  • 016 - Miscellaneous hardware