Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
Filing date
Publication of AU483881B2publicationCriticalpatent/AU483881B2/en
Priority claimed from US460414Aexternal-prioritypatent/US3893897A/en
Application filed by PPG Industries IncfiledCriticalPPG Industries Inc
Publication of AU7960575ApublicationCriticalpatent/AU7960575A/en