Drilldown: Patents

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Patents > Inventor country : CH or DE or HU & Applicant type : Hermann Burkardt or INDIV & National tech categories: None & CPCs : CPC B64B1/40 or CPC B64C23/005 or None & Family year: 1910 - 1919

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None (14) · airplane (12) · stability (6) · Propellers (5) · automatic stability (4) · pendulum (3) · instrument (3) · subsystem (3) · safety (3) · Design (3) · equilibrium (3)
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Showing below up to 44 results in range #1 to #44.

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