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.)
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LEFEBVRE PIERRE FR
Original Assignee
LEFEBVRE PIERRE FR
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Filing date
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Application filed by LEFEBVRE PIERRE FRfiledCriticalLEFEBVRE PIERRE FR
Priority to FR7220436ApriorityCriticalpatent/FR2187553A1/fr
Publication of FR2187553A1publicationCriticalpatent/FR2187553A1/fr