Patent classifications
D
TEXTILES; PAPER
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D01
NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
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D01H
SPINNING OR TWISTING
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5/00
Drafting machines or arrangements; ; Threading of roving into drafting machine
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D01H5/18
Drafting machines or arrangements without fallers or like pinned bars
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D01H5/60
Arrangements maintaining drafting elements free of fibre accumulations
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D01H5/66
Suction devices; exclusively;
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