Rotary die cutter
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United States of America Patent
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Dec 20, 2016
Grant Date -
Oct 30, 2014
app pub date -
Apr 23, 2014
filing date -
Apr 26, 2013
priority date (Note) -
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Abstract
A sheet is intermittently advanced or alternately advanced and retreated by a pair of feed rollers in synchronization with rotation of a pair of magnet and anvil rollers so that the pair of magnet and anvil rollers makes two or more revolutions while the sheet passes through the pair of magnet and anvil rollers. The punching of the same pattern is performed by a flexible die at a plurality of areas of the sheet spaced in a sheet conveying direction.
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