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Patents for Henry J. Dart & Co.
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
53,915	Apr. 10, 1866	H.J. Behrens	Rotary Steam Engine	rotary steam engines
77,373	Apr. 28, 1868	D.D. Hardy	Rotary Engine	rotary steam engines

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