Drilldown: Patents

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Patents > Year filed: 1909 & Office : CH or CL

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LTA (10) · frame (9) · airplane (6) · design (5) · navigation (5) · construction (4) · wings (3) · Propellers (3) · propulsion (3) · car (3) · stability (3) · Subsystem (3) · dirigible (3) · propeller (2) · takeoff (2) · balloon (2) · Tragfläche (2) · Whole (2) · Airship (2)
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Showing below up to 22 results in range #1 to #22.

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