Douglas H. Ring (Q5301555)
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American inventor
Language | Label | Description | Also known as |
---|---|---|---|
English | Douglas H. Ring |
American inventor |
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Sitelinks
Wikipedia(3 entries)
- arzwiki دوجلاس ه (مهندس من امريكا)
- enwiki Douglas H. Ring
- ukwiki Дуглас Х. Рінг