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Patents for James A. Allan
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
2,621,556	Dec. 16, 1952	J.A. Allan, R.O. Beardsley	Comparator for Testing Turbine Blades and the Like	comparators
2,652,664	Sep. 22, 1953	F.C. Savage, J.A. Allan	Operator-controlled Grinding Machine With Optical Comparator	profile and contour grinders

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