The BirdieBall Practice Golf Ball is Granted Patent
Have you seen a BirdieBall practice golf ball? You would know if you have seen one because they have a very distinctive look. Some people refer to them as the “napkin holder” practice balls.
This week a US patent was granted directed to the BirdieBall. The patent is USPN 7300357 titled “Practice Sport Projectile Having a Through Hole.”
Dave Dawsey – Watching Golf Ball Patents