Author: anonymous or pseudonymous, per EU Copyright Directive (1993), Article 1, §§1-4
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Este ficheiro multimedia está no dominio público nos Estados Unidos. Isto aplícase a obras dos Estados Unidos cuxo copyright expirou, normalmente porque a súa primeira publicación efectuouse con anterioridade ao 1 de xaneiro de 1929. Vexa esta páxina para máis explicacións.
Esta imaxe podería non estar no dominio público fóra dos Estados Unidos (isto aplícase especialmente a Canada, China (non en Hong Kong, Macao, ou a Área de Taiwan), Alemaña, México e Suíza). O creador e o ano de publicación son información esencial e haina que aportar. Consulte Wikipedia:Public domain e Wikipedia:Copyrights para máis detalles.
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*Author: anonymous or pseudonymous, per EU Copyright Directive (1993), Article 1, §§1-4 *This image was published not later than 1936 in conjunction with the Nobel Prize in Physics. '''If anyone has information that an author (photographer's actual name
Este ficheiro contén información adicional, probablemente engadida pola cámara dixital ou polo escáner usado para crear ou dixitalizar a imaxe. Se o ficheiro orixinal foi modificado, poida que algúns detalles non se reflictan no ficheiro modificado.