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Geneva, Switzerland : World Intellectual Property Organization, 1999.
English | 10.34667/tind.28919 |
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Paris [France] : Cujas, 1968.
French | P 24 CEN.T |
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Geneva [Switzerland] : Birpi, 1968.
English | E 2384N761 BIRPI.S(F/E) |
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Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1975.
Swiss german | 3 SE |