1840558

Information

• Patent Grant
• 1840558

• References
• Source

• Patent Number

  1,840,558

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1932
  93 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
  • Y10T16/276 - Liquid

• US Classifications

  • 016 - Miscellaneous hardware