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
Priority claimed from US618862Aexternal-prioritypatent/US2875394A/en
Priority claimed from FR772203Aexternal-prioritypatent/FR1235937A/fr
Application filed by Radiation DynamicsfiledCriticalRadiation Dynamics
Application grantedgrantedCritical
Publication of BE590290QpublicationCriticalpatent/BE590290Q/fr