JM

John Madsen

AB Amf Bowling: 2 patents #10 of 45Top 25%
Overall (All Time): #2,262,261 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5800274 Bowling alley bumper system for producing visual effects Kent L. Widrick, Winston Sanders, Darrin Bryant, Leonard Pauley 1998-09-01
5779554 Three-dimensional bowling alley masking unit Winston Sanders, Sean Anderson 1998-07-14