发明授权
US3885483A Saw apparatus 失效
锯设备

Saw apparatus
摘要:
Herein disclosed is a saw apparatus having circular saw blades which are independently axially movable on a rotary shaft supporting the blades for cutting a board to sections along markings applied on the face or faces of the board. The markings are sensed by a scanning arrangement and signals are produced when the scanning arrangement detects the markings. The saw blades are shifted to positions specified by these signals which represent the locations of the individual markings.
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