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 NL6915852.Aexternal-prioritypatent/NL157559B/en
Application filed by Texas Industries IncfiledCriticalTexas Industries Inc
Priority to AT49873ApriorityCriticalpatent/AT338107B/en
Publication of ATA49873ApublicationCriticalpatent/ATA49873A/en
Application grantedgrantedCritical
Publication of AT338107BpublicationCriticalpatent/AT338107B/en