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.)
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.)
ADRIEN-PAUL-EMILE BONNARD
Original Assignee
ADRIEN-PAUL-EMILE BONNARD
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 ADRIEN-PAUL-EMILE BONNARDfiledCriticalADRIEN-PAUL-EMILE BONNARD
Application grantedgrantedCritical
Publication of FR522880ApublicationCriticalpatent/FR522880A/fr
Appareil permettant à l'homme de descendre dans les eaux profondes et de travailler au sec sur des corps submergés et sans se ressentir de la pression
Appareil destiné à déterminer la vitesse verticale de l'air ou de l'eau, respectivement la vitesse verticale d'un navire par rapport à l'air ou à l'eau