| 申请人 |
E.I. DU PONT DE NEMOURS & CO., WILMINGTON, DEL., US |
发明人 |
BRUNK, DONALD, HARVEY, WILMINGTON, DE 19802, US;REGESTER, DAVID, JAMES, WEST GROVE, PA 19390, US;ROBERTSON, CHARLES, WILLIAM, ROCKLAND, DE 19732, US;WELLINGS, ANDERS, JOHN, NEWARK, DE 19711, US |
