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
CA645397A
Inventor
W. Brandt Edgar
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.)
ANSTALT fur DIE ENTWICKLUNG VON ERFINDUNGEN und GEWERBLICHEN ANWENDUNGEN ENERGA
Original Assignee
ANSTALT fur DIE ENTWICKLUNG VON ERFINDUNGEN und GEWERBLICHEN ANWENDUNGEN ENERGA
Publication date
Application grantedgrantedCritical
Publication of CA645397ApublicationCriticalpatent/CA645397A/en