Drilldown: Patents

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Patents > National tech categories : DE 77 or USPC 244/97 & Number of figures: None

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LTA (22) · propulsion (10) · navigation (8) · balloon (7) · None (6) · propeller (6) · sail (3) · rudder (3) · frame (3) · gas (2) · suspension (2) · steam (2) · pressure (2) · airplane (2) · hydrogen (2) · wheels (2) · compressed air (2) · ascension (2) · car (2)
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Showing below up to 36 results in range #1 to #36.

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