Johann Schneider-Ammann (born 1952), Electrical Engineering, Switzerland. Biography, key achievements and where Johann Schneider-Ammann ranks in Technology.
عشرون سؤالاً وثماني دقائق على الساعة، ونسبة مئوية مقاسة مقابل كل من خاضه. دون تسجيل.
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