Whenever an exclusive or nonexclusive conveyance of any right to reproduce, prepare derivative works based on, distribute copies of or publicly display a work of fine art is made by or on behalf of the artist who created it or the owner at the time of the conveyance, any ambiguity with respect to the nature or extent of the rights conveyed shall be resolved in favor of the reservation of rights by the artist or owner unless in any given case the federal copyright law (17 U.S.C. 1 et seq.) provides to the contrary. [1981 c.824 §4]
Oregon Legal Code