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
Application filed by Pressure Controls LtdfiledCriticalPressure Controls Ltd
Priority to ZA710894ApriorityCriticalpatent/ZA71894B/en
Priority to FR7204721Aprioritypatent/FR2126879A5/fr
Priority to DE19722206900prioritypatent/DE2206900A1/en
Publication of ZA71894BpublicationCriticalpatent/ZA71894B/en