Drilldown: Patents

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Patents > Office: DE & Inventor country: DE & Number of text pages: 1-2 & Number of figures: None

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Office: (Click arrow to add another value)
Inventors:
None (8) · Anton Flettner (2)
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Tech fields:
LTA (28) · balloon (11) · propulsion (11) · gas (10) · propeller (7) · pressure (5) · frame (5) · whole (4) · motor (4) · hydrogen (4) · airplane (3) · safety (3) · control (3) · design (3) · navigation (3) · car (3)
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Citations from after 1930:
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Showing below up to 51 results in range #1 to #51.

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