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
AU12213/19A
Inventor
Telephone Engineer Vanburen and Morgan Streets Chicago III LIS A John Erickson
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.)
Automatic Electric Co
Original Assignee
Automatic Electric Co
Filing date
Publication date
Application filed by Automatic Electric CofiledCriticalAutomatic Electric Co
Publication of AU1221319ApublicationCriticalpatent/AU1221319A/en
AU12213/19A1919-08-21Improvements in or relating to automatic switching mechanism for use more particularly in telephone or like systems
ExpiredAU1221319A
(en)