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.)
Kaihatsu Concrete KK
Original Assignee
Kaihatsu Concrete 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 Kaihatsu Concrete KKfiledCriticalKaihatsu Concrete KK
Priority to JP9052381ApriorityCriticalpatent/JPS57205383A/en
Publication of JPS57205383ApublicationCriticalpatent/JPS57205383A/en