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Die große Enzyklopädie des mechanischen Rechnens

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Search results for: Koshi, Ryoichiro


 
  • Patent:US3741470 28.12.1970 Koshi, Ryoichiro (P), Barozzi, Gianpiero (P), Horeschi, Giancarlo (P) Citizen (P) Watch Co. : Adding Machine

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