1773988

Information

• Patent Grant
• 1773988

• References
• Source

• Patent Number

  1,773,988

• Date Filed

  Not available

• Date Issued

  Tuesday, August 26, 1930
  94 years ago

• CPC

  • E05F3/06 - in which a torsion spring rotates a member around an axis perpendicular to the axis of the piston
  • E05Y2900/132 - Doors
  • Y10S12/02 - Lasting machines, dash pots
  • Y10S16/21 - Checks, closers, check valve construction
  • Y10T16/2774 - Floor pivot

• US Classifications

  • 016 - Miscellaneous hardware
  • 012 - Boot and shoe making
  • 251 - Valves and valve actuation