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 Gakki Co Ltd
Original Assignee
Nippon Gakki 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 Gakki Co LtdfiledCriticalNippon Gakki Co Ltd
Priority to JP14836374ApriorityCriticalpatent/JPS573951B2/ja
Priority to US05/642,670prioritypatent/US4065993A/en
Publication of JPS5175514ApublicationCriticalpatent/JPS5175514A/ja
Publication of JPS573951B2publicationCriticalpatent/JPS573951B2/ja