3831303

Information

• Patent Grant
• 3831303

• References
• Source

• Patent Number

  3,831,303

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1974
  50 years ago

• CPC

  • G04B19/207 - by means of bands
  • G04B19/00 - Indicating the time by visual means

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 235 - Registers
  • 345 - Computer graphics processing and selective visual display systems
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology
  • D10 - Measuring, testing, or signalling instruments