| 申请人 |
BETZDEARBORN INC., TREVOSE, PA., US |
发明人 |
HWA, CHIH MING, PALATINE, IL 60067, US;KELLY, JOHN ARTHUR, CRYSTAL LAKE, IL 60014, US;TAI, WUN TEN, PALOS HILLS, IL 60465, US;FAN, LAI-DUIEN GRACE, LAKE ZURICH, IL 60047, US;KREH, ROBERT PAUL, JESSUP, MD 20794, US;GREAVES, BRIAN, RUNCORN, CHESHIRE WA7 4AL, GB |
