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
CA748251A
Inventor
Peter Siegfried
Buchholz Otto
Deicher Oskar
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.)
Ice-Aktiengesellschaft
Original Assignee
Ice-Aktiengesellschaft
Publication date
Application grantedgrantedCritical
Publication of CA748251ApublicationCriticalpatent/CA748251A/en