238000004519 manufacturing process Methods 0.000 description 1.229910000831 Steel Inorganic materials 0.000 description 1.230000001419 dependent Effects 0.000 claims abstract description 4.230000004301 light adaptation Effects 0.000 claims abstract description 5.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to SE9801810A priority Critical patent/SE9801810L/en Priority to SE9801810 priority Application filed by Carl Keruboo AB filed Critical Carl Keruboo AB Publication of EP0960991A1 publication Critical patent/EP0960991A1/en Status Withdrawn legal-status Critical Current Links Original Assignee Carl Keruboo AB Priority date (The priority date is an assumption and is not a legal conclusion.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 or warranty as to the accuracy of the list.)
Inventor Arne Andersson Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Withdrawn Application number EP19990109067 Other languages German ( de)
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