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(en )
1972-05-09
Traveling cylinder imprinter including flexible band cylinder support means
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(en )
1854-06-13
Peters
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(en )
1856-07-29
Printing-press
GB190111610A
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1901-07-20
Improvements in Coin Holding Cards.
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(en )
1915-11-09
Check and check-book protector.
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(en )
1860-05-08
ltjfbery
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(de )
1925-05-22
Verfahren der Herstellung von gegen Faelschung gesicherten Druckstuecken
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1853-08-02
Printing-press
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(en )
1922-04-04
Bookkeeping machine
US13308A
(en )
1855-07-24
Hand-stamp
Wood
1926
The Use of Photographs in Questioned Document Trials
GB190314716A
(en )
1904-07-02
Improvements in or relating to Machines for Printing Shop-counter Check Books and the like.
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1936-06-29
Druckwerk fuer Registrierkassen oder Buchungsmaschinen
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1923-06-21
Improvements relating to the protection of cheques or other documents against fraudulent or other alteration
Potter
1883
The National Currency: Its Origin
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Abth
1855
Ueber Ammoniacum carbonicum
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