Who invented the poly print?

The invention of poly print, or polygraphic printing, is attributed to the development of various printing techniques over time rather than a single inventor. Polygraphy encompasses multiple methods, including lithography and offset printing, which evolved through contributions from various inventors in the 19th century, such as Alois Senefelder for lithography. The term itself may refer to the use of polymer plates in printing, which became popular in the late 20th century with advancements in technology.