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Individual
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Individual
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Priority to JP6819081UpriorityCriticalpatent/JPS598406Y2/ja
Publication of JPS57180421UpublicationCriticalpatent/JPS57180421U/ja
Application grantedgrantedCritical
Publication of JPS598406Y2publicationCriticalpatent/JPS598406Y2/ja
A method of providing a mounting frame for electrical components, a coupling frame for performing the method, and a concealed electrical installation system for cooperation with the coupling frame