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.)
MSA Safety Inc
Original Assignee
Mine Safety Appliances Co
Filing date
Publication date
Application filed by Mine Safety Appliances CofiledCriticalMine Safety Appliances Co
Application grantedgrantedCritical
Publication of AU3692158ApublicationCriticalpatent/AU3692158A/en
Publication of AU220127B2publicationCriticalpatent/AU220127B2/en