Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B31
MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
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B31F
MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
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1/00
Mechanical deformation without removing material, e.g. in combination with laminating
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B31F1/20
Corrugating; Corrugating combined with laminating to other layers
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B31F1/24
Making webs in which the channel of each corrugation is transverse to the web feed
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B31F1/26
by interengaging toothed cylinders; cylinder constructions
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B31F1/28
combined with uniting the corrugated webs to flat webs; ; Making double-faced corrugated cardboard
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B31F1/2818
Glue application specially adapted therefor
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