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
CA887604A
Inventor
E. Makinen Alpo
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.)
INSINOORITOIMISTO A MAKINEN AND CO KY
Original Assignee
INSINOORITOIMISTO A MAKINEN AND CO KY
Publication date
Application grantedgrantedCritical
Publication of CA887604ApublicationCriticalpatent/CA887604A/en