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Patents > CPCs : CPC B64C11/48 or CPC B64C33/00 & Number of figures: 1-4

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Inventors:
Rudolph G. Dressler (2) · Johann Stumpf (2)
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None (5) · Rudolph G. Dressler (2)
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Tech fields:
Propeller (11) · None (9) · frame (6) · airplane (6) · flapping (6) · Churn (5) · stability (5) · hybrid (5) · propulsion (4) · wings (4) · ornithopter (3) · marine (3) · design (3) · propellers (3) · navigation (3)
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Showing below up to 56 results in range #1 to #56.

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