ES28365A1 - Un procedimiento para la producción de planchas o cilindros grabados en acero por vía fotográfica por medio de la gelatina bicromatada.
- Google Patents
Un procedimiento para la producción de planchas o cilindros grabados en acero por vía fotográfica por medio de la gelatina bicromatada.
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.)
Rolffs Ernst Junior
Original Assignee
Rolffs Ernst Junior
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 Rolffs Ernst JuniorfiledCriticalRolffs Ernst Junior
Priority to ES28365ApriorityCriticalpatent/ES28365A1/es
Publication of ES28365A1publicationCriticalpatent/ES28365A1/es
ES28365A1901-08-161901-08-16Un procedimiento para la producción de planchas o cilindros grabados en acero por vía fotográfica por medio de la gelatina bicromatada.
ExpiredES28365A1
(es)