Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki Co Ltd
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Filing date
Publication date
Application filed by Nippon Gakki Co LtdfiledCriticalNippon Gakki Co Ltd
Priority to JP10475776ApriorityCriticalpatent/JPS5330278A/en
Publication of JPS5330278ApublicationCriticalpatent/JPS5330278A/en
PURPOSE: To make the object being treated porous by making structurally isometric parts beforehand or at the same instant of treatment in the intended regions of the object being treated and accelerating selective gas etching.