3781009

Information

• Patent Grant
• 3781009

• References
• Source

• Patent Number

  3,781,009

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1973
  51 years ago

• CPC

  • A63B71/0009 - for handicapped persons
  • A63B2071/0027 - visually handicapped
  • Y10S273/27 - Blind and color blind

• US Classifications

  • 473 - Games using tangible projectile
  • 250 - Radiant energy
  • 273 - Amusement devices: games
  • 340 - Communications: electrical