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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Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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Filing date
Publication date
Application filed by Murata Manufacturing Co LtdfiledCriticalMurata Manufacturing Co Ltd
Priority to JP1978061703UpriorityCriticalpatent/JPS5842755Y2/ja
Publication of JPS53166473UpublicationCriticalpatent/JPS53166473U/ja
Application grantedgrantedCritical
Publication of JPS5842755Y2publicationCriticalpatent/JPS5842755Y2/ja
Apparatus having floating magnet unit with light reflecting mirror for detecting and indicating to an observer the presence upon a person entering a public place of ferromagnetic material that may be put to harmful use