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.)
CHIYUUGOKU TETSUKOU KK
CHUGOKU TEKKO
Original Assignee
CHIYUUGOKU TETSUKOU KK
CHUGOKU TEKKO
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 CHIYUUGOKU TETSUKOU KK, CHUGOKU TEKKOfiledCriticalCHIYUUGOKU TETSUKOU KK
Priority to JP7903975ApriorityCriticalpatent/JPS522850A/ja
Publication of JPS522850ApublicationCriticalpatent/JPS522850A/ja
Publication of JPS554495B2publicationCriticalpatent/JPS554495B2/ja