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.)
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Priority claimed from GB9027929Aexternal-prioritypatent/GB2251110B/en
Application filed by Mass Transit Railway CorpfiledCriticalMass Transit Railway Corp
Priority to SG103694ApriorityCriticalpatent/SG103694G/en
Publication of SG103694GpublicationCriticalpatent/SG103694G/en