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Priority claimed from US481683Aexternal-prioritypatent/US2783838A/en
Priority claimed from US48755355external-prioritypatent/US2821670A/en
Application filed by United Shoe Machinery CorpfiledCriticalUnited Shoe Machinery Corp
Application grantedgrantedCritical
Publication of DK109608CpublicationCriticalpatent/DK109608C/en