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Patents for Roy G. Kirby
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
2,641,874	Jun. 16, 1953	R.G. Kirby	Grinding Machine	cam grinding machines
2,641,875	Jun. 16, 1953	J. Decker, J.M. Morgan, Jr., R.G. Kirby	Grinding Wheel Speed Regulator	grinding machines

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