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.)
Expired
Application number
AU19719/29A
Inventor
William Harney Francis
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.)
Upson Co
Original Assignee
Upson Co
Filing date
Publication date
Application filed by Upson CofiledCriticalUpson Co
Publication of AU1971929ApublicationCriticalpatent/AU1971929A/en