Challenge course | Patent Number 08066578
US 08066578 B2Filled DateJan 3, 2007
Priority DateDec 21, 2004
Publication DateAug 16, 2007
Expiration DateDec 21, 2024
Inventor/ApplicantsJames Liggett
ExaminesNGUYEN, KIEN T
Art Unit3711
Technology Center3700
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