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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Columbia Co LtdfiledCriticalNippon Columbia Co Ltd
Priority to JP4681476ApriorityCriticalpatent/JPS5816521B2/en
Publication of JPS52129501ApublicationCriticalpatent/JPS52129501A/en
Publication of JPS5816521B2publicationCriticalpatent/JPS5816521B2/en