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2.
3.
Buffalo, New York : The Patent and Trademark Office Society, 1990.
English | 47 US |
4.
Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1977.
German | 28 DE |
5.
Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1970.
Dutch | 3 SE |
6.
New York, New York : International Trademark Association, 1971.
English | 64 US |
7.
8.