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.)
Expired
Application number
CA229,672A
Inventor
Klas G.G. Ek
Sven W. Sjogren
Yrjo A. Ein
Carl G.B. Ekwall
Eric J.A. Engqvist
Axel H. Jagerstrom
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
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 SE11297/71Aexternal-prioritypatent/SE361704B/xx
Priority claimed from SE14179/71Aexternal-prioritypatent/SE367858B/xx
Priority claimed from CA150,337Aexternal-prioritypatent/CA974975A/en
Application filed by Atlas Copco ABfiledCriticalAtlas Copco AB
Priority to CA229,672ApriorityCriticalpatent/CA993858A/en
Application grantedgrantedCritical
Publication of CA993858ApublicationCriticalpatent/CA993858A/en