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1.
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New York, New York : International Trademark Association, 1982.
English | 64 US |
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2.
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Buffalo, New York : The Patent and Trademark Office Society, 1978.
English | 47 US |
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3.
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1976.
German | 28 DE |
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