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.)
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 日本酸素株式会社filedCritical日本酸素株式会社
Priority to JP7680988UpriorityCriticalpatent/JPH0647504Y2/ja
Publication of JPH01180291UpublicationCriticalpatent/JPH01180291U/ja
Application grantedgrantedCritical
Publication of JPH0647504Y2publicationCriticalpatent/JPH0647504Y2/ja