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Patents > Filing date: 1920 & Application number : 429938D or None

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Tech fields:
airplane (18) · design (6) · wings (5) · frame (5) · propeller (4) · construction (3) · stability (3) · propellers (3) · Parachutes (3) · None (3)
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None (6) · CPC B64C11/36 (3) · CPC B64C3/00 (3) · CPC F03D3/067 (2) · CPC B64D17/80 (2) · CPC B64D27/04 (2) · CPC B64C3/56 (2) · CPC B64C3/38 (2) · CPC B64F1/221 (2) · CPC F05B2260/72 (2)
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Showing below up to 43 results in range #1 to #43.

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