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.)
Dowa KK
Original Assignee
Dowa KK
Filing date
Publication date
Priority claimed from JP5533373Aexternal-prioritypatent/JPS5123212B2/ja
Priority claimed from JP7329373Uexternal-prioritypatent/JPS53758Y2/ja
Priority claimed from JP7329273Uexternal-prioritypatent/JPS53757Y2/ja
Application filed by Dowa KKfiledCriticalDowa KK
Application grantedgrantedCritical
Publication of AU6197173ApublicationCriticalpatent/AU6197173A/en
Publication of AU479443B2publicationCriticalpatent/AU479443B2/en