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.)
Lamson and Sessions Co
Original Assignee
Lamson and Sessions Co
Filing date
Publication date
Application filed by Lamson and Sessions CofiledCriticalLamson and Sessions Co
Application grantedgrantedCritical
Publication of AU242234B2publicationCriticalpatent/AU242234B2/en
Publication of AU6407260ApublicationCriticalpatent/AU6407260A/en