4.4 The Four Types of Trademarks - OpenStax
https://openstax.org/books/introduction-intellectual-property/pages/4-4-the-four-types-of-trademarks
WebCertification Marks. A certification mark is any word, phrase, symbol, or design—or a combination of any of these—owned by one party that certifies the goods and services of others when they meet certain standards or requirements. xi A certification mark identifies either the nature of a product or service—for example, that it meets the ...
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