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
CA846568A
Inventor
Schlemmer Albert
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.)
METALLURGIQUE D'ESPERANCE-LONGDOZ SA
Original Assignee
METALLURGIQUE D'ESPERANCE-LONGDOZ SA
Publication date
Application grantedgrantedCritical
Publication of CA846568ApublicationCriticalpatent/CA846568A/en