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
CA613391A
Inventor
Cavallini Guido
Massarani Elena
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.)
Francesco Vismara SpA
Original Assignee
Francesco Vismara SpA
Publication date
Application grantedgrantedCritical
Publication of CA613391ApublicationCriticalpatent/CA613391A/en