En büyük Scientific Instrument Maker kim veya kimdi?

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  V. Philippeayringe

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  763 Votes
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  Eduard Wenckebach

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• 3

  Gerrit Geerkens

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  Arend Jurriaan Schokking

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  Johannes Bernardus Schuuring

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  Johannes Sneewins

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  Johannes Hermannus Kocks

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• 8

  Pierre Vernier

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