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 Soda Co Ltd
Original Assignee
Nippon Soda 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 Soda Co LtdfiledCriticalNippon Soda Co Ltd
Publication of FR2257226A1publicationCriticalpatent/FR2257226A1/fr
Application grantedgrantedCritical
Publication of FR2257226B1publicationCriticalpatent/FR2257226B1/fr
