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 Earl Herbert RobbinsfiledCriticalEarl Herbert Robbins
Priority to PH27430ApriorityCriticalpatent/PH21273A/en
Publication of PH21273ApublicationCriticalpatent/PH21273A/en