150 years after creation of unpublished work by an author whose year of death is not known (Q72286597)
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criterion used to determine if a published work by authors whose year of death is not known is in the public domain in the US
- 150 years after creation of work by an author whose year of death is not known
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | 150 years after creation of unpublished work by an author whose year of death is not known |
criterion used to determine if a published work by authors whose year of death is not known is in the public domain in the US |
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