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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B27M
WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
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1/00
Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
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B27M1/08
by multi-step processes
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