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.)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR819477ApublicationCriticalpatent/FR819477A/fr
Perfectionnements apportés aux appareils dits <<arrache-poulie>>, <<arrache-moyeu>>, <<arrache-roulement>> et aux appareils analogues