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Records of the Locarno Conference for the Purpose of Setting Up an International Classification for Industrial Designs : World Intellectual Property Organization (WIPO ; Oct. 2 to 8, 1968).
- 346.048 L81185
- Locarno conference for the purpose of setting up an international classification for industrial designs (1968 : locarno, Switzerland)
- WIPO,
- 1972.
- Geneva :