All Patents in class 470/907


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All Patents in class 470/907
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
1,254,709	Jan. 29, 1918	O. Anderson, D. Levinger	Tapping Machine
2,279,462	Apr. 14, 1942	R.T. Brokaw, C.O. Holland, E.F. Lundeen	Combined drilling and tapping machine
2,813,280	Nov. 19, 1957	L.B. Huffman	Machine tool for drilling and tapping holes	tapping machines