Drilldown: Patents

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Patents > Office : CH or ES & Number of figures: 3-4

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Office: (Click arrow to add another value)
Inventors:
None (2) · Carl Franz Hubert Hertel (2) · Joseph Wetterwald (2) · Carl Wilhelm Paul (2)
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Applicant is inventor:
Tech fields:
airplane (17) · frame (8) · propulsion (8) · design (7) · stability (6) · LTA (6) · construction (5) · propeller (5) · navigation (4) · automatic stability (4) · Tragfläche (4) · propellers (4) · subsystem (3) · whole (3) · jet (3)
Full specification filed date:
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Related to aircraft:
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Cites these patents:
Citations from after 1930:
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Showing below up to 39 results in range #1 to #39.

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