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.)
NIPPON KOGEN CONCRETE KK
Mitsui Toatsu Chemicals Inc
Tetsudo Kizai Kogyo Co Ltd
Original Assignee
NIPPON KOGEN CONCRETE KK
Mitsui Toatsu Chemicals Inc
Tetsudo Kizai Kogyo 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 NIPPON KOGEN CONCRETE KK, Mitsui Toatsu Chemicals Inc, Tetsudo Kizai Kogyo Co LtdfiledCriticalNIPPON KOGEN CONCRETE KK
Priority to JP2389776ApriorityCriticalpatent/JPS52106505A/ja
Publication of JPS52106505ApublicationCriticalpatent/JPS52106505A/ja
Publication of JPS5740282B2publicationCriticalpatent/JPS5740282B2/ja