申请人 |
ARISTECH CHEMICAL CORP., PITTSBURGH, PA., US |
发明人 |
SALEK, JEFFREY S., OAKDALE, PENNSYLVANIA 15071, US;PUGACH, JOSEPH, MONROEVILLE, PENNSYLVANIA 15146, US;ELIAS, CAROLE L., NEW KENSINGTON, PENNSYLVANIA 15086, US;CULLO, LEONARD A., GREENSBURG, PENNSYLVANIA 15601, US |