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 Knowles J, Schmitt JfiledCriticalKnowles J
Priority to PT6603877ApriorityCriticalpatent/PT66038B/pt
Publication of PT66038ApublicationCriticalpatent/PT66038A/pt
Publication of PT66038BpublicationCriticalpatent/PT66038B/pt
Dispositivo per l'inserimento a riflessione di un fascio di raggi ausiliario in un fascio principale, particolarmente in una macchina fotocompositrice