Drilldown: Patents

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Patents > National tech categories : DE 77 or FR 6.3 & Number of figures: 4-6

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None (2) · Janko Klopčić (2) · Louis Blériot (2) · Alfred-Eugène Pichou (2) · Otto Hartung (2) · F. Gaebert (2) · Carl Alfred Johansson (2) · Richard Czygan (2)
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None (12) · Carl Alfred Johansson (2) · F. Gaebert (2) · Louis Blériot (2) · Richard Czygan (2) · Otto Hartung (2) · Alfred-Eugène Pichou (2)
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