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
CA771663A
Inventor
Ravenna Franco
Carissimi Massimo
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.)
Maggioni and C SpA
Original Assignee
Maggioni and C SpA
Publication date
Application grantedgrantedCritical
Publication of CA771663ApublicationCriticalpatent/CA771663A/en