Drilldown: Patents

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Patents > Year granted: 1910 - 1919 & Office : AH or DE or GB or SAX & Inventor country: DE & Applicant type : INDIV or INIV or None & Family year: 1909 & First filing: Yes

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LTA (9) · None (5) · stability (5) · balloon (4) · frame (4) · airship (4) · automatic stability (3) · control (3) · propeller (3) · Propulsion (3) · Design (3) · Propellers (3) · Construction (3) · airplane (3) · Subsystem (3) · helicopter (2) · equilibrium (2) · gas (2) · hybrid (2)
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Showing below up to 27 results in range #1 to #27.

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