3638947

Information

• Patent Grant
• 3638947

• References
• Source

• Patent Number

  3,638,947

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1972
  52 years ago

• CPC

  • A63F9/0669 - Tesselation
  • A63F2003/0075 - covering two or more playing fields
  • A63F2009/0686 - Rhombus
  • A63F2009/0697 - of polygonal shapes

• US Classifications

  • 273 - Amusement devices: games