Robert Helliwell (Q7345386)
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American electrical engineer, radio scientist
- Robert Arthur Helliwell
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Robert Helliwell |
American electrical engineer, radio scientist |
|
Statements
2 September 1920Gregorian
1 reference
3 May 2011
1 reference
Identifiers
1 reference
1 reference
Sitelinks
Wikipedia(2 entries)
- dewiki Robert A. Helliwell
- enwiki Robert Helliwell