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.)
Norsk Hydro Elektrisk Kvaelstof AS
Original Assignee
Norsk Hydro Elektrisk Kvaelstof AS
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Filing date
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Application filed by Norsk Hydro Elektrisk Kvaelstof ASfiledCriticalNorsk Hydro Elektrisk Kvaelstof AS
Application grantedgrantedCritical
Publication of FR501596ApublicationCriticalpatent/FR501596A/fr