Drilldown: Patents

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Patents > Office : ?? or DE or FR or GR or IN or US & Inventor country : Bavaria or None & Tech fields : Propulsion or balloon & Patent agent: None

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Bel (3) · None (3) · Johnstone (2) · Georges-Marie Cave (2) · August Riedinger (2) · Boubillon (2)
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Showing below up to 116 results in range #1 to #116.

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