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Priority to JP862084UpriorityCriticalpatent/JPS60120840U/ja
Publication of JPS60120840UpublicationCriticalpatent/JPS60120840U/ja
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Publication of JPH0354914Y2publicationCriticalpatent/JPH0354914Y2/ja
Valve unit in ink supply channel of ink-jet recording apparatus, ink cartridge using the valve unit, ink supply needle and method of producing the valve unit