698. Combinations, improvements and trade variants.

In relation to old designs1, a design might be new even if the parts of which it was composed were old2, but two matters could not be combined together and validly registered as a new design. Although the requirements for a valid combination are not as strict as in the case of patents3, as a general rule there has to be some artistic or other advantage from the combination besides that possessed by the parts separately4, or at least the combination must have involved some artistic or mental effort5. In particular, the choice of variants commonly used in the

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