申请人 |
TETRONICS RESEARCH AND DEVELOPMENT CO. LTD., FARINGDON, OXFORDSHIRE, GB;SCHULLER CORP., DENVER, COL., US |
发明人 |
WILLIAMS, JOHN KENNETH, FARINGDON OXFORDSHIRE, SN7 8NJ, GB;OLDS, LEONARD ELMO, CASTLE ROCK COLORADO, 80107, US;HEANLEY, CHARLES PETER, FARINGDON OXFORDSHIRE, SN7 7LW, GB |