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.)
NISHIHARA KANKYO EISEI KENKYUSHO KK
Original Assignee
NISHIHARA KANKYO EISEI KENKYUSHO KK
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 NISHIHARA KANKYO EISEI KENKYUSHO KKfiledCriticalNISHIHARA KANKYO EISEI KENKYUSHO KK
Priority to JP4546988ApriorityCriticalpatent/JPH01218683A/ja
Publication of JPH01218683ApublicationCriticalpatent/JPH01218683A/ja
Publication of JPH0325236B2publicationCriticalpatent/JPH0325236B2/ja