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Patents for Rolland B. Aiman
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
2,349,240	May 23, 1944	R.B. Aiman	Adjustable Multiple Spindle Drill Head	multiple spindle drilling heads
2,452,709	Nov. 02, 1948	R.B. Aiman	Lubricating System for Adjustable Multiple Spindle Drill Head	metalworking machine lubrication

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