# The Patents Rules 2007, Paragraph 20


The capital letters in any typeface or font used in any drawing or photograph must be more than 3mm high.

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Source: https://www.legislation.gov.uk/uksi/2007/3291/schedule/2/paragraph/20 (the official version)
Page: https://openlegislation.uk/patents-rules-2007/schedule-2/paragraph-20
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.