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Priority to JP710485UpriorityCriticalpatent/JPH0315338Y2/ja
Publication of JPS61122869UpublicationCriticalpatent/JPS61122869U/ja
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Publication of JPH0315338Y2publicationCriticalpatent/JPH0315338Y2/ja
Latent image-use printing ink composition, printed matter containing latent image recorded by the ink composition, reading method by latent image information and latent image information reading device
Latent image-use printing ink composition, printed matter containing latent image recorded by the ink composition, reading method by latent image information and latent image information reading device