Drilldown: Patents

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Patents > Year filed: 1920 - 1929 & Number of diagram pages: 1

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Tech fields:
airplane (25) · frame (16) · design (11) · wings (7) · propulsion (6) · propellers (6) · chassis (4) · control (4) · safety (3) · rudder (3) · Parachutes (3) · motors (3) · engines (3) · marine (3)
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CPCs:
None (4) · CPC B64C3/56 (4) · CPC B64C3/00 (4) · CPC B64D27/04 (3) · CPC B64C13/00 (2) · CPC F03D3/067 (2) · CPC F05B2260/72 (2) · CPC B64C25/06 (2) · CPC B64C11/36 (2) · CPC B64C1/26 (2) · CPC B64C9/02 (2)
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Citations from after 1930:
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Showing below up to 53 results in range #1 to #53.

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