Drilldown: Patents

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Patents > National tech categories : DE 77h.6 or USPC 244/45R & Number of claims: 4-13

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None (7) · Hellmuth Hirth (2)
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None (10)
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None (16) · propeller (13) · stability (10) · airplane (10) · frame (8) · airfoil (8) · propulsion (6) · wheels (3) · control (3) · design (3) · rudder (2) · propellers (2) · navigation (2) · multiplane (2) · wings (2) · electricity (2) · car (2)
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None (4)
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Showing below up to 47 results in range #1 to #47.

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