Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B27
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
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B27K
PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
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3/00
Impregnating wood,; e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
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B27K3/34
Organic impregnating agents
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B27K3/36
Aliphatic compounds
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