While his first Swedish patent, which he received in 1863, was on "ways to prepare gunpowder"
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Captured 2026-08-15 from Wikipedia. The archived copy is preserved so this citation survives link rot.
While his first Swedish patent, which he received in 1863, was on "ways to prepare gunpowder"
Captured 2026-08-15 from Wikipedia. The archived copy is preserved so this citation survives link rot.