FR548709A -
Improvements to processes and machines for polychrome printing in general, but more especially usable for banknotes, bonds and other securities
- Google Patents
Improvements to processes and machines for polychrome printing in general, but more especially usable for banknotes, bonds and other securities
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B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
B41M3/14—Security printing
FR548709D1922-03-111922-03-11
Improvements to processes and machines for polychrome printing in general, but more especially usable for banknotes, bonds and other securities
ExpiredFR548709A
(en)