Drilldown: Patents

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Patents > Office : CH or MX or SAX & Inventor country : CH or NL

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Tech fields:
airplane (12) · LTA (12) · frame (12) · propeller (11) · propulsion (9) · Subsystem (8) · stability (7) · navigation (7) · None (5) · whole (5) · design (5) · balloon (5) · dirigible (3) · rigid (3) · car (3) · cables (3) · airfoil (3) · heavier-than-air (3)
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Cites these patents:
Citations from after 1930:
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Showing below up to 43 results in range #1 to #43.

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