Article R135-1 of the French Intellectual Property Code
I.-Where the searches provided for in 1° of Article L. 135-3 must, under this article, take place in France, the sources of information that must be consulted include at least the following sources: 1° For published books: a) Legal deposit registers; b) Indexes and catalogues of the holdings and collections of publicly accessible libraries and similar institutions; c) Databases or registers listing printed books, such as WATCH (Writers, Artists and…