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Patents for William C. Robby
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	720,486	Feb. 10, 1903	W.N. Rumely, W.C. Robby	Pneumatic Straw Stacker
	1,126,288	Jan. 26, 1915	W.C. Robby, W.N. Rumely	Interchangeable Grain Thresher and Huller
	1,177,812	Apr. 04, 1916	W.C. Robby, W.N. Rumely	Interchangeable Grain Thresher and Huller

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