Drilldown: Patents

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Patents > Year granted: 1910 - 1919 & Office : AH or CA or DE or GB & Applicant type : Hermann Burkardt or INDIV or None & Patent agent: Wheatley & Mackenzie & First filing: Yes

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illumination (4) · stability (4) · military (3) · frame (3) · propulsion (3) · airplane (3) · LTA (2) · electricity (2) · landing (2) · joints (2) · aerodynamics (2) · navigation (2) · flare (2) · propellers (2) · design (2) · airship (2) · structure (2) · subsystem (2)
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Showing below up to 19 results in range #1 to #19.

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