Drilldown: Patents

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Patents > National tech categories : AT 77d or USPC 89/1.1 & Number of claims: 1

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None (5) · Reinhold Richter (3) · Heinrich Bier (2) · Josef Deixler (2)
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LTA (16) · airplane (15) · frame (12) · None (9) · design (9) · Propulsion (7) · wings (7) · airship (7) · propellers (6) · construction (6) · navigation (5) · propeller (5) · Control (5) · aerodynamics (5) · balloon (4) · biplane (4)
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Showing below up to 56 results in range #1 to #56.

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