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.)
NIHON SEKISO KOGYO CO
Sintokogio Ltd
Original Assignee
NIHON SEKISO KOGYO CO
Sintokogio 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 NIHON SEKISO KOGYO CO, Sintokogio LtdfiledCriticalNIHON SEKISO KOGYO CO
Priority claimed from EP84305493Aexternal-prioritypatent/EP0172278B1/en
Application grantedgrantedCritical
Publication of DE3478908D1publicationCriticalpatent/DE3478908D1/en