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Patent for Type Rubbing Machine
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This patent model demonstrates an invention for James Duncan's Rotary Type Rubber which smoothed the rough edges on freshly cast type. The invention was granted patent number 5420.
National Museum of American History’s own descriptionCredit linePatent for Type Rubbing Machine. ca 1848. Duncan, James L.. National Museum of American History. CC0.
