2620620

Information

• Patent Grant
• 2620620

• References
• Source

• Patent Number

  2,620,620

• Date Filed

  Not available

• Date Issued

  Tuesday, December 9, 1952
  72 years ago

• CPC

  • G04B7/00 - Combined normal and automatic winding up

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 188 - Brakes
  • 192 - Clutches and power-stop control
  • 968 - Horology