Answer | Crossword Clue |
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woodburytype | a photomechanical process in which an exposed and developed bichromated film is forced into a metal plate by great pressure, and so forms a matrix for subsequent printing |
woodburytypes | WOODBURYTYPE, a photomechanical process in which an exposed and developed bichromated film is forced into a metal plate by great pressure, and so forms a matrix for subsequent printing |