Inventors:
- Palatine IL, US
Karol Polaczek - Hickory Hills IL, US
Karol Polaczek, JR. - Hickory Hills IL, US
Jerzy Latocha - Chicago IL, US
Jeffrey L. Crull - McFarland WI, US
William R. Mathias - Middleton WI, US
Evan Sparks - Cottage Grove WI, US
Joel Kramka - Madison WI, US
Montel Caruthers - Madison WI, US
Henry M. Hillstrom - Chicago IL, US