2637987

Information

• Patent Grant
• 2637987

• References
• Source

• Patent Number

  2,637,987

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1953
  72 years ago

• CPC

  • G04B3/06 - Keys or the like with means preventing overwinding
  • F16D7/02 - of the friction type
  • G10F1/06 - Musical boxes with plucked teeth, blades, or the like
  • Y10T464/20 - with auxilliary indicator or alarm

• US Classifications

  • 464 - Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
  • 185 - Motors: spring, weight, or animal powered
  • 192 - Clutches and power-stop control
  • 267 - Spring devices
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology
  • 984 - Musical instruments