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
CA639384A
Inventor
Rummel Theodor
Quast Hans-Friedrich
Haus Joachim
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.)
Siemens and Halske AG
Original Assignee
Siemens and Halske AG
Publication date
Application grantedgrantedCritical
Publication of CA639384ApublicationCriticalpatent/CA639384A/en