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Priority claimed from US506823Aexternal-prioritypatent/US3310343A/en
Priority claimed from US506760Aexternal-prioritypatent/US3299840A/en
Application filed by Knoll AssociatesfiledCriticalKnoll Associates
Application grantedgrantedCritical
Publication of FI44937BpublicationCriticalpatent/FI44937B/fi
Publication of FI44937CpublicationCriticalpatent/FI44937C/fi