Drilldown: Patents

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Patents > Office : DE or IT or UN & Applicant type : UNIV-PRO-GOV or Other & Granted: Yes & National tech categories: DE 77h.6 & Number of diagram pages: 1

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propeller (38) · propulsion (11) · propellers (8) · subsystem (6) · airplane (4) · metal (3) · helicopter (3) · electricity (2) · wing (2) · marine (2) · None (2) · design (2) · barometer (2) · aerodynamics (2) · wood (2)
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Showing below up to 51 results in range #1 to #51.

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