| 申请人 |
ETHYL ADDITIVES CORP., RICHMOND, VA., US;DSM COPOLYMER, BATON ROUGE, LA., US |
发明人 |
NALESNIK, THEODORE E., WAPPINGERS FALLS, NEW YORK 12590, US;KAPUSCINSKI, MARIA M., CARMEL, NEW YORK 10512, US;MIGDAL, CYRIL ANDREW, CROTON-ON-HUDSON, NEW YORK 10520, US |
