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
CA747718A
Inventor
Robert Michel
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.)
LADISLAS RADO
Original Assignee
LADISLAS RADO
Publication date
Application grantedgrantedCritical
Publication of CA747718ApublicationCriticalpatent/CA747718A/en