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
CA684475A
Inventor
J. Prager Hans
Ko Nan Chang Kern
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.)
RCA Corp
Original Assignee
Radio Corporation of America
Publication date
Application grantedgrantedCritical
Publication of CA684475ApublicationCriticalpatent/CA684475A/en