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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FR D OPTIQUE ET DE MECANIQUE S
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FR D OPTIQUE ET DE MECANIQUE S
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Application filed by FR D OPTIQUE ET DE MECANIQUE SfiledCriticalFR D OPTIQUE ET DE MECANIQUE S
Priority to FR46808ApriorityCriticalpatent/FR1492829A/fr
Application grantedgrantedCritical
Publication of FR1492829ApublicationCriticalpatent/FR1492829A/fr