| 申请人 |
AMSTED INDUSTRIES, INC., CHICAGO, ILL., US |
发明人 |
CHRISTIE, C. DALE, NAPERVILLE, IL 60565, US;HENDRICKSEN, MICHAEL J., PROSPECT HEIGHTS, IL 60070, US;POLZIN, MARK A., BARTLETT, IL 60103, US;GALLAGHER, MICHAEL T., HIGHLAND PARK, IL 60035, US;OLIVER, JOHN D., FLOSSMOOR, IL 60422, US |
