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
CA861384A
Inventor
Ruffini Guglielmo
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.)
VITA MAYER AND C GIA F LLI VITA Sas
Original Assignee
VITA MAYER AND C GIA F LLI VITA Sas
Publication date
Application grantedgrantedCritical
Publication of CA861384ApublicationCriticalpatent/CA861384A/en