Patent:CH31317

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Patent:CH 31317
Title:Mit einer Additionsmaschine verbundene Hilfsschreibmaschine
Date:31.03.1905
Place:USA
Country:Switzerland
Person:Cram, Edwin Beecher (P)
Company:
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Link to the patent office:
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 CH31317 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=CH31317)


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