ES114465A1 -
Improvements in the preparation of sheets of carbon-paper sheets for the obtaining of multiple copies by means of fingerprinting.
- Google Patents
Improvements in the preparation of sheets of carbon-paper sheets for the obtaining of multiple copies by means of fingerprinting.
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.)
Niagara Fold Inc
Original Assignee
Niagara Fold Inc
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 Niagara Fold IncfiledCriticalNiagara Fold Inc
Priority to ES114465ApriorityCriticalpatent/ES114465A1/en
Publication of ES114465A1publicationCriticalpatent/ES114465A1/en
ES114465A1929-08-211929-08-21
Improvements in the preparation of sheets of carbon-paper sheets for the obtaining of multiple copies by means of fingerprinting.
ExpiredES114465A1
(en)