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Patents for C. Fred. Heller
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	363,508	May 24, 1887	F.H. Anderson, H.P. Holt, F.W. Crossley	Pendulum Governor for Gas Motor Engines
	370,258	Sep. 20, 1887	F.W. Crossley, H.P. Holt	Gas Motor Engine

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