Patent classifications
A
HUMAN NECESSITIES
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A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
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A61B
DIAGNOSIS; SURGERY; IDENTIFICATION
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17/00
Surgical instruments, devices or methods
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A61B17/16
Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
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A61B17/1662
for particular parts of the body
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A61B17/1688
for the sinus or nose
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