Patent of Mary Hallock-Greenewalts colour organ (Q31164)
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Revision as of 21:13, 29 April 2023 by ChrisVG (talk | contribs) (Created claim: Property:P40: 15 October 1929)
No description defined
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent of Mary Hallock-Greenewalts colour organ | No description defined |
Statements
15 October 1929Gregorian
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