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- Patent model picture 11.
- Patent model picture 7.
- Oil painting portrait of Amos W. Woodward for the history books.
- Woodward Company patent model photo from the archives.
- The Amos Woodward patent model on display in the Man Cave. Patent No 103 813
- The Woodward Company patent model from the US Patent office Washington DC
- Woodward Company catalog cover from the Water Power District on Race Street
- History saved for the 21st. Century!
- United States Patent Number 103,813.
- The Saga of a Patent Model.
- Mr. Woodward gives thanks to the men of Hydro Engineering.
- Patent 103,813, circa 1870.
- Patent model picture 6.
- Patent model picture 9.
- Patent model picture 4.