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.)
Herfurth Geheimrat Edgar
RASSOW BERTHOLD
Original Assignee
Herfurth Geheimrat Edgar
RASSOW BERTHOLD
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 Herfurth Geheimrat Edgar, RASSOW BERTHOLDfiledCriticalHerfurth Geheimrat Edgar
Priority to ES147834ApriorityCriticalpatent/ES147834A3/es
Publication of ES147834A3publicationCriticalpatent/ES147834A3/es
ES147834A1940-01-191940-01-19Un procedimiento para la fabricación de papel eliminando los negros de imprenta, partiendo de papel impreso.
ExpiredES147834A3
(es)