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 filed by Francois Prud HommefiledCriticalFrancois Prud Homme
Priority to BE615741ApriorityCriticalpatent/BE615741R/fr
Application grantedgrantedCritical
Publication of BE615741RpublicationCriticalpatent/BE615741R/fr