Regarding US-to-IPC(7) Concordances [Concordances between US Patent Classification and the International Patent Classification Seventh Edition]: The
USPC does not precisely concord to the IPC. Users of this Concordance must look at the
IPC schedules to select an appropriate classification for the concept being
This file produced by USPTO - SIRA - Office of Patent Automation - Reference
Tools Project. Questions or comments relating to this concordance can be directed to the Office
for Patent and Trademark Information, tel (703) 306-2600 or by e-mail.
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