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.)
NITSUSHIN SEIKOU KK
Seiko Instruments Inc
Nippon Steel Nisshin Co Ltd
Original Assignee
NITSUSHIN SEIKOU KK
Seiko Instruments Inc
Nisshin Steel 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 NITSUSHIN SEIKOU KK, Seiko Instruments Inc, Nisshin Steel Co LtdfiledCriticalNITSUSHIN SEIKOU KK
Priority to JP50061076ApriorityCriticalpatent/JPS51137626A/ja
Publication of JPS51137626ApublicationCriticalpatent/JPS51137626A/ja
Publication of JPS5710948B2publicationCriticalpatent/JPS5710948B2/ja