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Priority claimed from GB888825063Aexternal-prioritypatent/GB8825063D0/en
Application filed by Wicksteed Engineering LimitedfiledCriticalWicksteed Engineering Limited
Priority claimed from PCT/GB1989/001245external-prioritypatent/WO1990004492A2/en
Application grantedgrantedCritical
Publication of ATE84461T1publicationCriticalpatent/ATE84461T1/en