| 申请人 |
NATIONAL RESEARCH DEVELOPMENT CORP., LONDON, GB |
发明人 |
FLEISCHMANN, MARTIN, EASTLEIGH, HAMPSHIRE, GB;KING, CHRISTOPHER JOHN HALL, NEWCASTLE-UPON-TYNE, NORTHUMBERLAND, GB;OLDFIELD, JOHN WILFRED, SUTTON COLDFIELD, WARWICKSHIRE, GB;PLIMLEY, RAYMOND ERNEST, NEWCASTLE-UPON-TYNE, NORTHUMBERLAND, GB;TENNAKOON, CHARLES LIONEL KASTURIRATNE, KALAGEDIHENA, LK |
