1.
2.
3.
4.
New York, New York : Clark Boardman Co., 1995.
English | 49 US |
5.
East Kilbride [Scotland] : Licensing Executives Society International, 1986.
Hungarian | F 67(413) US 48 |
6.
Buffalo, New York : The Patent and Trademark Office Society, 1979.
English | 47 US |
7.
East Kilbride [Scotland] : Licensing Executives Society International, 1987.
German | 48 US |
8.
East Kilbride [Scotland] : Licensing Executives Society International, 1975.
English | 48 US |
9.
Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1986.
Swiss german | 3 SE |
10.
East Kilbride [Scotland] : Licensing Executives Society International, 1987.
English | 48 US |