The Typewriter Database

To find out when your typewriter was made, start by choosing the brand from the select box below.

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Green Serial #'s • Black notes, no #'s • Grey no info.

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U.S. Typewriter Patents 1829-1951

Patent Date
YYYY-MM-DD
Patent # Assignors Name(s) Assignors Prename(s) Patented Item Assignor to: Country Category

Source: Dirk Schumann's "Patentbase" DVD.