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 Adden Joseph Benjamin, Preston Herbert JamesfiledCriticalAdden Joseph Benjamin
Application grantedgrantedCritical
Publication of AT87201BpublicationCriticalpatent/AT87201B/en