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
CA746346A
Inventor
T. Hukki Risto
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-ENGINEERING BUREAU R T HUKKI
Original Assignee
INSINOORITOIMISTO-ENGINEERING BUREAU R T HUKKI
Publication date
Application grantedgrantedCritical
Publication of CA746346ApublicationCriticalpatent/CA746346A/en