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.)
NARUKAWA CONCRETE KK
Original Assignee
NARUKAWA 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 NARUKAWA CONCRETE KKfiledCriticalNARUKAWA CONCRETE KK
Priority to JP3204981ApriorityCriticalpatent/JPS5835852B2/en
Publication of JPS57146608ApublicationCriticalpatent/JPS57146608A/en
Publication of JPS5835852B2publicationCriticalpatent/JPS5835852B2/en