Drilldown: Patents

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Patents > Year granted: 1909 & Inventor country : CH or DE or ES or HU or NL & Applicant type : Hermann Burkardt or INDIV & Grant date: 1900 - 1999 & CPCs : CPC B64B1/40 or CPC B64C23/005 or None

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LTA (8) · airplane (8) · Design (6) · subsystem (5) · propellers (5) · airfoil (4) · hybrid (4) · balloon (4) · propulsion (4) · None (3) · lift (3) · projectile (3) · propeller (3) · stability (3) · frame (3) · navigation (3) · toy (3) · Balloons (3) · control (3)
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Showing below up to 43 results in range #1 to #43.

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