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
AU5038/21A
Inventor
Conn. U. SA and Communicator The Noiseless Typewriter Campany Mc. Middleton
Filing date
Publication date
Application filedfiledCritical
Publication of AU503821ApublicationCriticalpatent/AU503821A/en