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John Jonas
Canadian metallurgist
browse: engineers
dead
- born
- 1932
- died
- 2025
- age at death
- 92
- known for
- engineer, metallurgist
1932 β 2025
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who john jonas is
John J. Jonas was a Canadian engineer.
where this comes from
wikidata records a date of death for John Jonas in 2025, which is how we know. your browser re-checks this against wikidata on every visit, so itβs current even if the page itself was cached a while ago.
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