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.)
Dainippon Shikizai Kogyo Co Ltd
Nippon Carbide Industries Co Inc
Original Assignee
Dainippon Shikizai Kogyo Co Ltd
Nippon Carbide Industries Co Inc
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 Dainippon Shikizai Kogyo Co Ltd, Nippon Carbide Industries Co IncfiledCriticalDainippon Shikizai Kogyo Co Ltd
Priority to JP667576ApriorityCriticalpatent/JPS52138031A/en
Publication of JPS52138031ApublicationCriticalpatent/JPS52138031A/en