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Priority claimed from US442408Aexternal-prioritypatent/US3357821A/en
Application filed by American Metal Climax Inc.filedCriticalAmerican Metal Climax Inc.
Publication of DK137795BpublicationCriticalpatent/DK137795B/da
Application grantedgrantedCritical
Publication of DK137795CpublicationCriticalpatent/DK137795C/da