3637220

Information

• Patent Grant
• 3637220

• References
• Source

• Patent Number

  3,637,220

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1972
  52 years ago

• CPC

  • A63B43/00 - Balls with special arrangements
  • A63B39/02 - Arrangements for maintaining the pressure
  • A63B39/025 - using containers with pressurising means for balls not in use

• US Classifications

  • 473 - Games using tangible projectile