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OTTO VELLEUER
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OTTO VELLEUER
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Application filed by OTTO VELLEUERfiledCriticalOTTO VELLEUER
Application grantedgrantedCritical
Publication of FR470155ApublicationCriticalpatent/FR470155A/fr
Entrée de serrures, verrous, etc. rendant ces derniers incrochetables et inviolables, applicable dans le batiment, à l'ameublement et aux coffres-forts