| 申请人 |
THE BRITISH PETROLEUM CO. P.L.C., LONDON, GB;BP CHEMICALS LTD., LONDON, GB |
发明人 |
COLMAN, DEREK ALAN, SUNBURY-ON-THAMES, MIDDLESEX, TW16 7LN, GB;STEWART, DOUGLAS, C/O BP CHEMICALS LIMITED, GRANGEMOUTH, STIRLINGSHIRE, FK3 9XH, GB;SCOTLAND, JAMES M. C/O BP CHEMICALS LIMITED, GRANGEMOUTH, STIRLINGSHIRE, FK3 9XH, GB |
