William R. Bertelsen (Q18394985)
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American inventor
Language | Label | Description | Also known as |
---|---|---|---|
English | William R. Bertelsen |
American inventor |
Statements
20 May 1920Gregorian
0 references
16 July 2009
0 references
Identifiers
Sitelinks
Wikipedia(3 entries)
- arwiki ويليام ر. بيرتيلسن
- enwiki William R. Bertelsen
- viwiki William R. Bertelsen