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 filedfiledCritical
Priority to JP6786874UpriorityCriticalpatent/JPS5550868Y2/ja
Priority to US05/580,778prioritypatent/US4003093A/en
Publication of JPS50156023UpublicationCriticalpatent/JPS50156023U/ja
Application grantedgrantedCritical
Publication of JPS5550868Y2publicationCriticalpatent/JPS5550868Y2/ja