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
CA917748A
Inventor
Schrader Werner
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.)
VEB TRANFORMATOREN- und RONTGENWERK DRESDEN
Original Assignee
VEB TRANFORMATOREN- und RONTGENWERK DRESDEN
Publication date
Application grantedgrantedCritical
Publication of CA917748ApublicationCriticalpatent/CA917748A/en