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 US07/153,246external-prioritypatent/US4784681A/en
Application filed by Glasstech Int L PfiledCriticalGlasstech Int L P
Publication of NO893908D0publicationCriticalpatent/NO893908D0/en
Publication of NO893908LpublicationCriticalpatent/NO893908L/en