发明授权
US08317641B1 Football lacing system 有权
足球系带系统

Football lacing system
摘要:
A football lacing system having a molded backbone with a series of spaced finger grooves separated by resilient ridges to insure proper hand placement for throwing a spiral pass. The backbone is preferably molded of thermal plastic rubber and is secured over the bladder seam of the exterior football covering by lacing that extends between paired lace holes along the length of the bladder seam.
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