Research materials related to scale manufacturer Benjamin Dearborn. Memoranda, patent photocopies, and a photocopy of Dearborn's Patent Balance Compare with Other Instruments for Weighing (1803).
Invention case file, containing correspondence related to the process of applying for and receiving a patent. Photocopies from the National Archives and Records Administration.
Invention case file, containing correspondence related to the process of applying for and receiving a patent. Photocopies from the National Archives and Records Administration.
Invention case file, containing correspondence related to the process of applying for and receiving a patent. Photocopies from the National Archives and Records Administration.
Invention case file, containing correspondence related to the process of applying for and receiving a patent. Photocopies from the National Archives and Records Administration.
Invention case file, containing correspondence related to the process of applying for and receiving a patent. Photocopies from the National Archives and Records Administration.
Invention case file, containing correspondence related to the process of applying for and receiving a patent. Photocopies from the National Archives and Records Administration.
Invention case file, containing correspondence related to the process of applying for and receiving a patent. Photocopies from the National Archives and Records Administration.
