Patent classifications
Y
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Y10
TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Y10T
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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408/00
Cutting by use of rotating axially moving tool
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Y10T408/55
with work-engaging structure other than Tool or tool-support
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Y10T408/557
Frictionally engaging sides of opening in work
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Y10T408/558
Opening coaxial with Tool
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Y10T408/5583
Engaging sides of opening being enlarged by Tool
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Y10T408/5586
Engaging surface subsequent to tool-action on that surface
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