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Creation date / 2012 / January / 9

Amos Walter Woodward's patent governor from 1870.
Amos Walter Woodward patent governor from 1870
Amos Woodward's first friction water wheel governor.
The Amos Woodward friction water wheel governor patent number 103,813.
A.W. Woodward Water Wheel Governor model from 1870.
A.W. Woodward Governor from 1870 patent.