Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB9014942Aexternal-prioritypatent/GB9014942D0/en
Application filed by Crosfield Joseph & SonsfiledCriticalCrosfield Joseph & Sons
Application grantedgrantedCritical
Publication of ATE102075T1publicationCriticalpatent/ATE102075T1/en