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Class 101/300 - Roller and plate inker


Subclass of Class 101 - Printing
Definition: Machines, there being an ink-supply plate and a roller for
No. of patents: 1
Last issue date: 08/20/1985


NumberTitleIssue Date
4536218Process and compositions for lithographic printing in multiple layers
Printed materials such as tickets, lottery forms, cards and contest forms, bearing a hidden message which is revealable by scratching off a covering opaque layer, are prepared by printing the message on the substrate, lithographing a protective layer such... 		08/20/1985
 
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