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Priority to JP5756282UpriorityCriticalpatent/JPS58159384U/ja
Publication of JPS58159384UpublicationCriticalpatent/JPS58159384U/ja
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Publication of JPS6310055Y2publicationCriticalpatent/JPS6310055Y2/ja
Process for simple, rapid and economical transformation of a window with a wooden or metal frame or a single pane frame into a window with a plurality of insulating panes