15 years or more after author(s) death (Q68542701)
copyright protection duration of 15 years from the death of the author(s)
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other details
aliases 15 years post mortem auctoris
 15 years p.m.a.
 15 years pma
 15 PMA
 PD-old-15
description copyright protection duration of 15 years from the death of the author(s)