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.)
Heckmann Napoleon Joseph
Original Assignee
Heckmann Napoleon Joseph
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 Heckmann Napoleon JosephfiledCriticalHeckmann Napoleon Joseph
Priority to ES580ApriorityCriticalpatent/ES580A1/en
Publication of ES580A1publicationCriticalpatent/ES580A1/en
ES580A1879-10-041879-10-04
Procedure that by modifying the manufacture of paper and parchment, reveals at first glance, the scratches of the writing.
ExpiredES580A1
(en)
A process for the manufacture of folios or sheets to obtain copies of cellulose (acetyl-cellulose), celluloid or other transparent plastic substances to print photomechanical transmissions on them.