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Priority to JP1620574UpriorityCriticalpatent/JPS50107326U/ja
Priority to CH685074Aprioritypatent/CH564917A5/xx
Priority to FR7417679Aprioritypatent/FR2260922A7/fr
Priority to BR788174Uprioritypatent/BR5407881U/pt
Priority to ES1974206735Uprioritypatent/ES206735Y/es
Publication of JPS50107326UpublicationCriticalpatent/JPS50107326U/ja