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NEO JIYANRU KK
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NEO JIYANRU KK
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Application filed by NEO JIYANRU KKfiledCriticalNEO JIYANRU KK
Priority to JP4069275ApriorityCriticalpatent/JPS51115843A/en
Publication of JPS51115843ApublicationCriticalpatent/JPS51115843A/en
PURPOSE: To make peeping instruments like telescopes and binoculars more conveniently portable by using filmy material that freely takes in or discharges air for the bodytube.