Section 2: Right of accession in relation to movable property

When the thing remains in common between the owners of the materials from which it was formed, it must be licensed for the common benefit.

In all cases where the owner whose material has been used, without his knowledge, to form a thing of another kind may claim ownership of that thing, he has the option of claiming the return of his material in the same kind, quantity, weight, measure and goodness, or its estimated value at the date of the return.

Those who have used materials belonging to others, and without their knowledge, may also be ordered to pay damages, if appropriate, without prejudice to proceedings by extraordinary means, if the case so requires.