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
Priority claimed from JP753773Aexternal-prioritypatent/JPS534664B2/ja
Priority claimed from JP753673Aexternal-prioritypatent/JPS4995253A/ja
Priority claimed from JP48008773Aexternal-prioritypatent/JPS4996358A/ja
Priority claimed from JP877173Aexternal-prioritypatent/JPS4996356A/ja
Priority claimed from JP877273Aexternal-prioritypatent/JPS4996357A/ja
Priority claimed from JP1527673Aexternal-prioritypatent/JPS49101511A/ja
Application filed by Nippon Gakki Co LtdfiledCriticalNippon Gakki Co Ltd
Application grantedgrantedCritical
Publication of CA1020342ApublicationCriticalpatent/CA1020342A/en