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
CA632354A
Inventor
Hertz Walter
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.)
ROLLMANN KAUFMANN ET CIE SNC
Original Assignee
ROLLMANN KAUFMANN ET CIE SNC
Publication date
Application grantedgrantedCritical
Publication of CA632354ApublicationCriticalpatent/CA632354A/en