3687457

Information

• Patent Grant
• 3687457

• References
• Source

• Patent Number

  3,687,457

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1972
  52 years ago

• CPC

  • A63B24/0021 - Tracking a path or terminating locations
  • A63B63/00 - Targets or goals for ball games
  • A63B63/06 - Revolving targets; Moving targets
  • A63B69/3694 - for driving only
  • A63B2024/0037 - on a target surface or at impact on the ground
  • A63B2024/004 - Multiple detectors or sensors each defining a different zone
  • A63B2024/0046 - Mechanical means for locating the point of impact or entry
  • A63B2063/001 - Targets or goals with ball-returning means
  • A63B2063/065 - movable or switchable between discrete positions
  • A63B2220/16 - Angular positions
  • A63B2220/24 - Angular displacement
  • A63B2220/80 - Special sensors, transducers or devices therefor

• US Classifications

  • 473 - Games using tangible projectile